Home / 28,102.04-38,778.90-15,527.24

Finding the Fourth Proportional to 28,102.04, 38,778.90 and 15,527.24

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Solution

The fourth proportional to 28,102.04, 38,778.90 and 15,527.24 is: 21,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.04 : 38,778.90 = 15,527.24 : x
  2. Step 2: Convert to fraction form
    28,102.04/38,778.90 = 15,527.24/x
  3. Step 3: Cross multiply
    28,102.04x = 38,778.90 × 15,527.24
  4. Step 4: Simplify right side
    28,102.04x = 602,129,287.24
  5. Step 5: Solve for x
    x = 602,129,287.24/28,102.04
  6. Step 6: Final answer
    x = 21,426.53

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Half scale
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Double scale
Find fourth proportional to 28,103.04, 38,780.28 and 15,528.24
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.