Home / 42,312.30-63,472.44-11,917.31

Finding the Fourth Proportional to 42,312.30, 63,472.44 and 11,917.31

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Solution

The fourth proportional to 42,312.30, 63,472.44 and 11,917.31 is: 17,877.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,312.30 : 63,472.44 = 11,917.31 : x
  2. Step 2: Convert to fraction form
    42,312.30/63,472.44 = 11,917.31/x
  3. Step 3: Cross multiply
    42,312.30x = 63,472.44 × 11,917.31
  4. Step 4: Simplify right side
    42,312.30x = 756,420,471.26
  5. Step 5: Solve for x
    x = 756,420,471.26/42,312.30
  6. Step 6: Final answer
    x = 17,877.08

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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.