Home / 39,321.86-58,992.10-17,139.20

Finding the Fourth Proportional to 39,321.86, 58,992.10 and 17,139.20

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Solution

The fourth proportional to 39,321.86, 58,992.10 and 17,139.20 is: 25,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321.86 : 58,992.10 = 17,139.20 : x
  2. Step 2: Convert to fraction form
    39,321.86/58,992.10 = 17,139.20/x
  3. Step 3: Cross multiply
    39,321.86x = 58,992.10 × 17,139.20
  4. Step 4: Simplify right side
    39,321.86x = 1,011,077,062.51
  5. Step 5: Solve for x
    x = 1,011,077,062.51/39,321.86
  6. Step 6: Final answer
    x = 25,712.85

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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.