Home / 29,132.87-43,690.05-12,488.45

Finding the Fourth Proportional to 29,132.87, 43,690.05 and 12,488.45

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Solution

The fourth proportional to 29,132.87, 43,690.05 and 12,488.45 is: 18,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,132.87 : 43,690.05 = 12,488.45 : x
  2. Step 2: Convert to fraction form
    29,132.87/43,690.05 = 12,488.45/x
  3. Step 3: Cross multiply
    29,132.87x = 43,690.05 × 12,488.45
  4. Step 4: Simplify right side
    29,132.87x = 545,620,786.47
  5. Step 5: Solve for x
    x = 545,620,786.47/29,132.87
  6. Step 6: Final answer
    x = 18,728.70

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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.