Home / 28,102.48-38,778.12-15,526.48

Finding the Fourth Proportional to 28,102.48, 38,778.12 and 15,526.48

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Solution

The fourth proportional to 28,102.48, 38,778.12 and 15,526.48 is: 21,424.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,102.48 : 38,778.12 = 15,526.48 : x
  2. Step 2: Convert to fraction form
    28,102.48/38,778.12 = 15,526.48/x
  3. Step 3: Cross multiply
    28,102.48x = 38,778.12 × 15,526.48
  4. Step 4: Simplify right side
    28,102.48x = 602,087,704.62
  5. Step 5: Solve for x
    x = 602,087,704.62/28,102.48
  6. Step 6: Final answer
    x = 21,424.72

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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.