Home / 28,344.32-39,115.04-15,769.04

Finding the Fourth Proportional to 28,344.32, 39,115.04 and 15,769.04

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Solution

The fourth proportional to 28,344.32, 39,115.04 and 15,769.04 is: 21,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.32 : 39,115.04 = 15,769.04 : x
  2. Step 2: Convert to fraction form
    28,344.32/39,115.04 = 15,769.04/x
  3. Step 3: Cross multiply
    28,344.32x = 39,115.04 × 15,769.04
  4. Step 4: Simplify right side
    28,344.32x = 616,806,630.36
  5. Step 5: Solve for x
    x = 616,806,630.36/28,344.32
  6. Step 6: Final answer
    x = 21,761.21

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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.