Home / 15,542.80-23,314.20-13,428.70

Finding the Fourth Proportional to 15,542.80, 23,314.20 and 13,428.70

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Solution

The fourth proportional to 15,542.80, 23,314.20 and 13,428.70 is: 20,143.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,542.80 : 23,314.20 = 13,428.70 : x
  2. Step 2: Convert to fraction form
    15,542.80/23,314.20 = 13,428.70/x
  3. Step 3: Cross multiply
    15,542.80x = 23,314.20 × 13,428.70
  4. Step 4: Simplify right side
    15,542.80x = 313,079,397.54
  5. Step 5: Solve for x
    x = 313,079,397.54/15,542.80
  6. Step 6: Final answer
    x = 20,143.05

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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.