Home / 21,132.60-29,112.24-17,775.48

Finding the Fourth Proportional to 21,132.60, 29,112.24 and 17,775.48

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Solution

The fourth proportional to 21,132.60, 29,112.24 and 17,775.48 is: 24,487.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,132.60 : 29,112.24 = 17,775.48 : x
  2. Step 2: Convert to fraction form
    21,132.60/29,112.24 = 17,775.48/x
  3. Step 3: Cross multiply
    21,132.60x = 29,112.24 × 17,775.48
  4. Step 4: Simplify right side
    21,132.60x = 517,484,039.88
  5. Step 5: Solve for x
    x = 517,484,039.88/21,132.60
  6. Step 6: Final answer
    x = 24,487.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.