Home / 42,368.94-63,553.84-12,787.02

Finding the Fourth Proportional to 42,368.94, 63,553.84 and 12,787.02

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Solution

The fourth proportional to 42,368.94, 63,553.84 and 12,787.02 is: 19,180.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,368.94 : 63,553.84 = 12,787.02 : x
  2. Step 2: Convert to fraction form
    42,368.94/63,553.84 = 12,787.02/x
  3. Step 3: Cross multiply
    42,368.94x = 63,553.84 × 12,787.02
  4. Step 4: Simplify right side
    42,368.94x = 812,664,223.16
  5. Step 5: Solve for x
    x = 812,664,223.16/42,368.94
  6. Step 6: Final answer
    x = 19,180.66

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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.