Home / 42,371.08-63,557.06-12,789.16

Finding the Fourth Proportional to 42,371.08, 63,557.06 and 12,789.16

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Solution

The fourth proportional to 42,371.08, 63,557.06 and 12,789.16 is: 19,183.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,371.08 : 63,557.06 = 12,789.16 : x
  2. Step 2: Convert to fraction form
    42,371.08/63,557.06 = 12,789.16/x
  3. Step 3: Cross multiply
    42,371.08x = 63,557.06 × 12,789.16
  4. Step 4: Simplify right side
    42,371.08x = 812,841,186.63
  5. Step 5: Solve for x
    x = 812,841,186.63/42,371.08
  6. Step 6: Final answer
    x = 19,183.87

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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.