Home / 39,139.92-58,703.04-12,841.20

Finding the Fourth Proportional to 39,139.92, 58,703.04 and 12,841.20

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Solution

The fourth proportional to 39,139.92, 58,703.04 and 12,841.20 is: 19,259.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,139.92 : 58,703.04 = 12,841.20 : x
  2. Step 2: Convert to fraction form
    39,139.92/58,703.04 = 12,841.20/x
  3. Step 3: Cross multiply
    39,139.92x = 58,703.04 × 12,841.20
  4. Step 4: Simplify right side
    39,139.92x = 753,817,477.25
  5. Step 5: Solve for x
    x = 753,817,477.25/39,139.92
  6. Step 6: Final answer
    x = 19,259.56

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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.