Home / 28,691.28-39,594.12-16,116.16

Finding the Fourth Proportional to 28,691.28, 39,594.12 and 16,116.16

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Solution

The fourth proportional to 28,691.28, 39,594.12 and 16,116.16 is: 22,240.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,691.28 : 39,594.12 = 16,116.16 : x
  2. Step 2: Convert to fraction form
    28,691.28/39,594.12 = 16,116.16/x
  3. Step 3: Cross multiply
    28,691.28x = 39,594.12 × 16,116.16
  4. Step 4: Simplify right side
    28,691.28x = 638,105,172.98
  5. Step 5: Solve for x
    x = 638,105,172.98/28,691.28
  6. Step 6: Final answer
    x = 22,240.39

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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.