Home / 42,551.82-63,827.64-12,969.90

Finding the Fourth Proportional to 42,551.82, 63,827.64 and 12,969.90

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Solution

The fourth proportional to 42,551.82, 63,827.64 and 12,969.90 is: 19,454.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,551.82 : 63,827.64 = 12,969.90 : x
  2. Step 2: Convert to fraction form
    42,551.82/63,827.64 = 12,969.90/x
  3. Step 3: Cross multiply
    42,551.82x = 63,827.64 × 12,969.90
  4. Step 4: Simplify right side
    42,551.82x = 827,838,108.04
  5. Step 5: Solve for x
    x = 827,838,108.04/42,551.82
  6. Step 6: Final answer
    x = 19,454.82

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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.