Home / 19,434.20-29,132.10-7,731.80

Finding the Fourth Proportional to 19,434.20, 29,132.10 and 7,731.80

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Solution

The fourth proportional to 19,434.20, 29,132.10 and 7,731.80 is: 11,590.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,434.20 : 29,132.10 = 7,731.80 : x
  2. Step 2: Convert to fraction form
    19,434.20/29,132.10 = 7,731.80/x
  3. Step 3: Cross multiply
    19,434.20x = 29,132.10 × 7,731.80
  4. Step 4: Simplify right side
    19,434.20x = 225,243,570.78
  5. Step 5: Solve for x
    x = 225,243,570.78/19,434.20
  6. Step 6: Final answer
    x = 11,590.06

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1.5x scale

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.