Home / 39,116.75-58,689.70-21,581.87

Finding the Fourth Proportional to 39,116.75, 58,689.70 and 21,581.87

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Solution

The fourth proportional to 39,116.75, 58,689.70 and 21,581.87 is: 32,380.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,116.75 : 58,689.70 = 21,581.87 : x
  2. Step 2: Convert to fraction form
    39,116.75/58,689.70 = 21,581.87/x
  3. Step 3: Cross multiply
    39,116.75x = 58,689.70 × 21,581.87
  4. Step 4: Simplify right side
    39,116.75x = 1,266,633,128.34
  5. Step 5: Solve for x
    x = 1,266,633,128.34/39,116.75
  6. Step 6: Final answer
    x = 32,380.84

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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.