Home / 39,139.24-58,631.10-21,565.48

Finding the Fourth Proportional to 39,139.24, 58,631.10 and 21,565.48

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Solution

The fourth proportional to 39,139.24, 58,631.10 and 21,565.48 is: 32,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.24 : 58,631.10 = 21,565.48 : x
  2. Step 2: Convert to fraction form
    39,139.24/58,631.10 = 21,565.48/x
  3. Step 3: Cross multiply
    39,139.24x = 58,631.10 × 21,565.48
  4. Step 4: Simplify right side
    39,139.24x = 1,264,407,814.43
  5. Step 5: Solve for x
    x = 1,264,407,814.43/39,139.24
  6. Step 6: Final answer
    x = 32,305.37

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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.