Home / 40,229.40-60,344.10-13,931.40

Finding the Fourth Proportional to 40,229.40, 60,344.10 and 13,931.40

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Solution

The fourth proportional to 40,229.40, 60,344.10 and 13,931.40 is: 20,897.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,229.40 : 60,344.10 = 13,931.40 : x
  2. Step 2: Convert to fraction form
    40,229.40/60,344.10 = 13,931.40/x
  3. Step 3: Cross multiply
    40,229.40x = 60,344.10 × 13,931.40
  4. Step 4: Simplify right side
    40,229.40x = 840,677,794.74
  5. Step 5: Solve for x
    x = 840,677,794.74/40,229.40
  6. Step 6: Final answer
    x = 20,897.10

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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.