Home / 28,470.71-39,286.60-16,531.72

Finding the Fourth Proportional to 28,470.71, 39,286.60 and 16,531.72

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Solution

The fourth proportional to 28,470.71, 39,286.60 and 16,531.72 is: 22,812.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.71 : 39,286.60 = 16,531.72 : x
  2. Step 2: Convert to fraction form
    28,470.71/39,286.60 = 16,531.72/x
  3. Step 3: Cross multiply
    28,470.71x = 39,286.60 × 16,531.72
  4. Step 4: Simplify right side
    28,470.71x = 649,475,070.95
  5. Step 5: Solve for x
    x = 649,475,070.95/28,470.71
  6. Step 6: Final answer
    x = 22,812.04

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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.