Home / 28,892.20-43,264.31-19,995.21

Finding the Fourth Proportional to 28,892.20, 43,264.31 and 19,995.21

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Solution

The fourth proportional to 28,892.20, 43,264.31 and 19,995.21 is: 29,941.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,892.20 : 43,264.31 = 19,995.21 : x
  2. Step 2: Convert to fraction form
    28,892.20/43,264.31 = 19,995.21/x
  3. Step 3: Cross multiply
    28,892.20x = 43,264.31 × 19,995.21
  4. Step 4: Simplify right side
    28,892.20x = 865,079,098.13
  5. Step 5: Solve for x
    x = 865,079,098.13/28,892.20
  6. Step 6: Final answer
    x = 29,941.61

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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.