Home / 28,470.87-42,732.22-15,155.04

Finding the Fourth Proportional to 28,470.87, 42,732.22 and 15,155.04

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Solution

The fourth proportional to 28,470.87, 42,732.22 and 15,155.04 is: 22,746.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,470.87 : 42,732.22 = 15,155.04 : x
  2. Step 2: Convert to fraction form
    28,470.87/42,732.22 = 15,155.04/x
  3. Step 3: Cross multiply
    28,470.87x = 42,732.22 × 15,155.04
  4. Step 4: Simplify right side
    28,470.87x = 647,608,503.39
  5. Step 5: Solve for x
    x = 647,608,503.39/28,470.87
  6. Step 6: Final answer
    x = 22,746.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.