Home / 42,327.90-63,504.54-12,746.70

Finding the Fourth Proportional to 42,327.90, 63,504.54 and 12,746.70

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Solution

The fourth proportional to 42,327.90, 63,504.54 and 12,746.70 is: 19,123.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,327.90 : 63,504.54 = 12,746.70 : x
  2. Step 2: Convert to fraction form
    42,327.90/63,504.54 = 12,746.70/x
  3. Step 3: Cross multiply
    42,327.90x = 63,504.54 × 12,746.70
  4. Step 4: Simplify right side
    42,327.90x = 809,473,320.02
  5. Step 5: Solve for x
    x = 809,473,320.02/42,327.90
  6. Step 6: Final answer
    x = 19,123.87

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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.