Home / 28,543.98-39,387.15-15,965.58

Finding the Fourth Proportional to 28,543.98, 39,387.15 and 15,965.58

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Solution

The fourth proportional to 28,543.98, 39,387.15 and 15,965.58 is: 22,030.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,543.98 : 39,387.15 = 15,965.58 : x
  2. Step 2: Convert to fraction form
    28,543.98/39,387.15 = 15,965.58/x
  3. Step 3: Cross multiply
    28,543.98x = 39,387.15 × 15,965.58
  4. Step 4: Simplify right side
    28,543.98x = 628,838,694.30
  5. Step 5: Solve for x
    x = 628,838,694.30/28,543.98
  6. Step 6: Final answer
    x = 22,030.52

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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.