Home / 42,537.08-63,787.12-12,947.98

Finding the Fourth Proportional to 42,537.08, 63,787.12 and 12,947.98

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Solution

The fourth proportional to 42,537.08, 63,787.12 and 12,947.98 is: 19,416.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,537.08 : 63,787.12 = 12,947.98 : x
  2. Step 2: Convert to fraction form
    42,537.08/63,787.12 = 12,947.98/x
  3. Step 3: Cross multiply
    42,537.08x = 63,787.12 × 12,947.98
  4. Step 4: Simplify right side
    42,537.08x = 825,914,354.02
  5. Step 5: Solve for x
    x = 825,914,354.02/42,537.08
  6. Step 6: Final answer
    x = 19,416.34

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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.