Home / 36,921.30-55,432.92-20,307.36

Finding the Fourth Proportional to 36,921.30, 55,432.92 and 20,307.36

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Solution

The fourth proportional to 36,921.30, 55,432.92 and 20,307.36 is: 30,489.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,921.30 : 55,432.92 = 20,307.36 : x
  2. Step 2: Convert to fraction form
    36,921.30/55,432.92 = 20,307.36/x
  3. Step 3: Cross multiply
    36,921.30x = 55,432.92 × 20,307.36
  4. Step 4: Simplify right side
    36,921.30x = 1,125,696,262.29
  5. Step 5: Solve for x
    x = 1,125,696,262.29/36,921.30
  6. Step 6: Final answer
    x = 30,489.07

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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.