Home / 38,977.16-58,487.67-21,209.12

Finding the Fourth Proportional to 38,977.16, 58,487.67 and 21,209.12

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Solution

The fourth proportional to 38,977.16, 58,487.67 and 21,209.12 is: 31,825.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,977.16 : 58,487.67 = 21,209.12 : x
  2. Step 2: Convert to fraction form
    38,977.16/58,487.67 = 21,209.12/x
  3. Step 3: Cross multiply
    38,977.16x = 58,487.67 × 21,209.12
  4. Step 4: Simplify right side
    38,977.16x = 1,240,471,773.94
  5. Step 5: Solve for x
    x = 1,240,471,773.94/38,977.16
  6. Step 6: Final answer
    x = 31,825.61

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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.