Home / 31,770.20-47,591.04-15,146.36

Finding the Fourth Proportional to 31,770.20, 47,591.04 and 15,146.36

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Solution

The fourth proportional to 31,770.20, 47,591.04 and 15,146.36 is: 22,688.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,770.20 : 47,591.04 = 15,146.36 : x
  2. Step 2: Convert to fraction form
    31,770.20/47,591.04 = 15,146.36/x
  3. Step 3: Cross multiply
    31,770.20x = 47,591.04 × 15,146.36
  4. Step 4: Simplify right side
    31,770.20x = 720,831,024.61
  5. Step 5: Solve for x
    x = 720,831,024.61/31,770.20
  6. Step 6: Final answer
    x = 22,688.90

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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.