Home / 40,398.68-60,612.60-20,686.52

Finding the Fourth Proportional to 40,398.68, 60,612.60 and 20,686.52

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Solution

The fourth proportional to 40,398.68, 60,612.60 and 20,686.52 is: 31,037.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,398.68 : 60,612.60 = 20,686.52 : x
  2. Step 2: Convert to fraction form
    40,398.68/60,612.60 = 20,686.52/x
  3. Step 3: Cross multiply
    40,398.68x = 60,612.60 × 20,686.52
  4. Step 4: Simplify right side
    40,398.68x = 1,253,863,762.15
  5. Step 5: Solve for x
    x = 1,253,863,762.15/40,398.68
  6. Step 6: Final answer
    x = 31,037.25

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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.