Home / 29,309.13-43,976-12,660.59

Finding the Fourth Proportional to 29,309.13, 43,976 and 12,660.59

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Solution

The fourth proportional to 29,309.13, 43,976 and 12,660.59 is: 18,996.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,309.13 : 43,976 = 12,660.59 : x
  2. Step 2: Convert to fraction form
    29,309.13/43,976 = 12,660.59/x
  3. Step 3: Cross multiply
    29,309.13x = 43,976 × 12,660.59
  4. Step 4: Simplify right side
    29,309.13x = 556,762,105.84
  5. Step 5: Solve for x
    x = 556,762,105.84/29,309.13
  6. Step 6: Final answer
    x = 18,996.20

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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.