Home / 29,061.72-43,535.40-19,170.78

Finding the Fourth Proportional to 29,061.72, 43,535.40 and 19,170.78

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Solution

The fourth proportional to 29,061.72, 43,535.40 and 19,170.78 is: 28,718.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,061.72 : 43,535.40 = 19,170.78 : x
  2. Step 2: Convert to fraction form
    29,061.72/43,535.40 = 19,170.78/x
  3. Step 3: Cross multiply
    29,061.72x = 43,535.40 × 19,170.78
  4. Step 4: Simplify right side
    29,061.72x = 834,607,575.61
  5. Step 5: Solve for x
    x = 834,607,575.61/29,061.72
  6. Step 6: Final answer
    x = 28,718.45

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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.