Home / 38,066.76-57,116.52-20,516.04

Finding the Fourth Proportional to 38,066.76, 57,116.52 and 20,516.04

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Solution

The fourth proportional to 38,066.76, 57,116.52 and 20,516.04 is: 30,782.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,066.76 : 57,116.52 = 20,516.04 : x
  2. Step 2: Convert to fraction form
    38,066.76/57,116.52 = 20,516.04/x
  3. Step 3: Cross multiply
    38,066.76x = 57,116.52 × 20,516.04
  4. Step 4: Simplify right side
    38,066.76x = 1,171,804,808.98
  5. Step 5: Solve for x
    x = 1,171,804,808.98/38,066.76
  6. Step 6: Final answer
    x = 30,782.89

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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.