Home / 55,003.36-82,437.28-21,689.92

Finding the Fourth Proportional to 55,003.36, 82,437.28 and 21,689.92

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Solution

The fourth proportional to 55,003.36, 82,437.28 and 21,689.92 is: 32,508.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,003.36 : 82,437.28 = 21,689.92 : x
  2. Step 2: Convert to fraction form
    55,003.36/82,437.28 = 21,689.92/x
  3. Step 3: Cross multiply
    55,003.36x = 82,437.28 × 21,689.92
  4. Step 4: Simplify right side
    55,003.36x = 1,788,058,008.22
  5. Step 5: Solve for x
    x = 1,788,058,008.22/55,003.36
  6. Step 6: Final answer
    x = 32,508.16

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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.