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Finding the Fourth Proportional to 40,307.20, 60,417.60 and 15,337.60

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Solution

The fourth proportional to 40,307.20, 60,417.60 and 15,337.60 is: 22,989.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,307.20 : 60,417.60 = 15,337.60 : x
  2. Step 2: Convert to fraction form
    40,307.20/60,417.60 = 15,337.60/x
  3. Step 3: Cross multiply
    40,307.20x = 60,417.60 × 15,337.60
  4. Step 4: Simplify right side
    40,307.20x = 926,660,981.76
  5. Step 5: Solve for x
    x = 926,660,981.76/40,307.20
  6. Step 6: Final answer
    x = 22,989.96

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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.