Home / 31,487.20-43,440.60-18,053.68

Finding the Fourth Proportional to 31,487.20, 43,440.60 and 18,053.68

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Solution

The fourth proportional to 31,487.20, 43,440.60 and 18,053.68 is: 24,907.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,487.20 : 43,440.60 = 18,053.68 : x
  2. Step 2: Convert to fraction form
    31,487.20/43,440.60 = 18,053.68/x
  3. Step 3: Cross multiply
    31,487.20x = 43,440.60 × 18,053.68
  4. Step 4: Simplify right side
    31,487.20x = 784,262,691.41
  5. Step 5: Solve for x
    x = 784,262,691.41/31,487.20
  6. Step 6: Final answer
    x = 24,907.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.