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Finding the Fourth Proportional to 29,309.83, 40,447.14 and 17,820.79

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Solution

The fourth proportional to 29,309.83, 40,447.14 and 17,820.79 is: 24,592.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,309.83 : 40,447.14 = 17,820.79 : x
  2. Step 2: Convert to fraction form
    29,309.83/40,447.14 = 17,820.79/x
  3. Step 3: Cross multiply
    29,309.83x = 40,447.14 × 17,820.79
  4. Step 4: Simplify right side
    29,309.83x = 720,799,988.04
  5. Step 5: Solve for x
    x = 720,799,988.04/29,309.83
  6. Step 6: Final answer
    x = 24,592.43

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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.