Home / 42,579.30-63,908.37-21,534.24

Finding the Fourth Proportional to 42,579.30, 63,908.37 and 21,534.24

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Solution

The fourth proportional to 42,579.30, 63,908.37 and 21,534.24 is: 32,321.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,579.30 : 63,908.37 = 21,534.24 : x
  2. Step 2: Convert to fraction form
    42,579.30/63,908.37 = 21,534.24/x
  3. Step 3: Cross multiply
    42,579.30x = 63,908.37 × 21,534.24
  4. Step 4: Simplify right side
    42,579.30x = 1,376,218,177.59
  5. Step 5: Solve for x
    x = 1,376,218,177.59/42,579.30
  6. Step 6: Final answer
    x = 32,321.30

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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.