Home / 28,452.60-39,264.28-15,705.88

Finding the Fourth Proportional to 28,452.60, 39,264.28 and 15,705.88

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Solution

The fourth proportional to 28,452.60, 39,264.28 and 15,705.88 is: 21,673.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,452.60 : 39,264.28 = 15,705.88 : x
  2. Step 2: Convert to fraction form
    28,452.60/39,264.28 = 15,705.88/x
  3. Step 3: Cross multiply
    28,452.60x = 39,264.28 × 15,705.88
  4. Step 4: Simplify right side
    28,452.60x = 616,680,069.97
  5. Step 5: Solve for x
    x = 616,680,069.97/28,452.60
  6. Step 6: Final answer
    x = 21,673.94

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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.