Home / 28,552.80-39,403.36-16,615.88

Finding the Fourth Proportional to 28,552.80, 39,403.36 and 16,615.88

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Solution

The fourth proportional to 28,552.80, 39,403.36 and 16,615.88 is: 22,930.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.80 : 39,403.36 = 16,615.88 : x
  2. Step 2: Convert to fraction form
    28,552.80/39,403.36 = 16,615.88/x
  3. Step 3: Cross multiply
    28,552.80x = 39,403.36 × 16,615.88
  4. Step 4: Simplify right side
    28,552.80x = 654,721,694.52
  5. Step 5: Solve for x
    x = 654,721,694.52/28,552.80
  6. Step 6: Final answer
    x = 22,930.21

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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.