Home / 29,820.20-41,154-19,731.02

Finding the Fourth Proportional to 29,820.20, 41,154 and 19,731.02

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Solution

The fourth proportional to 29,820.20, 41,154 and 19,731.02 is: 27,230.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,820.20 : 41,154 = 19,731.02 : x
  2. Step 2: Convert to fraction form
    29,820.20/41,154 = 19,731.02/x
  3. Step 3: Cross multiply
    29,820.20x = 41,154 × 19,731.02
  4. Step 4: Simplify right side
    29,820.20x = 812,010,397.08
  5. Step 5: Solve for x
    x = 812,010,397.08/29,820.20
  6. Step 6: Final answer
    x = 27,230.21

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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.