Home / 42,368.96-63,553.86-12,787.04

Finding the Fourth Proportional to 42,368.96, 63,553.86 and 12,787.04

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Solution

The fourth proportional to 42,368.96, 63,553.86 and 12,787.04 is: 19,180.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.96 : 63,553.86 = 12,787.04 : x
  2. Step 2: Convert to fraction form
    42,368.96/63,553.86 = 12,787.04/x
  3. Step 3: Cross multiply
    42,368.96x = 63,553.86 × 12,787.04
  4. Step 4: Simplify right side
    42,368.96x = 812,665,749.97
  5. Step 5: Solve for x
    x = 812,665,749.97/42,368.96
  6. Step 6: Final answer
    x = 19,180.69

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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.