Home / 40,432.64-60,634.98-15,479.78

Finding the Fourth Proportional to 40,432.64, 60,634.98 and 15,479.78

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Solution

The fourth proportional to 40,432.64, 60,634.98 and 15,479.78 is: 23,214.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,432.64 : 60,634.98 = 15,479.78 : x
  2. Step 2: Convert to fraction form
    40,432.64/60,634.98 = 15,479.78/x
  3. Step 3: Cross multiply
    40,432.64x = 60,634.98 × 15,479.78
  4. Step 4: Simplify right side
    40,432.64x = 938,615,847.53
  5. Step 5: Solve for x
    x = 938,615,847.53/40,432.64
  6. Step 6: Final answer
    x = 23,214.31

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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.