Home / 28,179.94-38,888.04-15,259.15

Finding the Fourth Proportional to 28,179.94, 38,888.04 and 15,259.15

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Solution

The fourth proportional to 28,179.94, 38,888.04 and 15,259.15 is: 21,057.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,179.94 : 38,888.04 = 15,259.15 : x
  2. Step 2: Convert to fraction form
    28,179.94/38,888.04 = 15,259.15/x
  3. Step 3: Cross multiply
    28,179.94x = 38,888.04 × 15,259.15
  4. Step 4: Simplify right side
    28,179.94x = 593,398,359.27
  5. Step 5: Solve for x
    x = 593,398,359.27/28,179.94
  6. Step 6: Final answer
    x = 21,057.47

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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.