Home / 40,172.40-60,272.24-13,521.15

Finding the Fourth Proportional to 40,172.40, 60,272.24 and 13,521.15

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Solution

The fourth proportional to 40,172.40, 60,272.24 and 13,521.15 is: 20,286.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,172.40 : 60,272.24 = 13,521.15 : x
  2. Step 2: Convert to fraction form
    40,172.40/60,272.24 = 13,521.15/x
  3. Step 3: Cross multiply
    40,172.40x = 60,272.24 × 13,521.15
  4. Step 4: Simplify right side
    40,172.40x = 814,949,930.27
  5. Step 5: Solve for x
    x = 814,949,930.27/40,172.40
  6. Step 6: Final answer
    x = 20,286.31

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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.