Home / 21,126.60-29,103.96-17,769.48

Finding the Fourth Proportional to 21,126.60, 29,103.96 and 17,769.48

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Solution

The fourth proportional to 21,126.60, 29,103.96 and 17,769.48 is: 24,479.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,126.60 : 29,103.96 = 17,769.48 : x
  2. Step 2: Convert to fraction form
    21,126.60/29,103.96 = 17,769.48/x
  3. Step 3: Cross multiply
    21,126.60x = 29,103.96 × 17,769.48
  4. Step 4: Simplify right side
    21,126.60x = 517,162,235.14
  5. Step 5: Solve for x
    x = 517,162,235.14/21,126.60
  6. Step 6: Final answer
    x = 24,479.20

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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.