Home / 29,422.72-40,612.64-18,812.39

Finding the Fourth Proportional to 29,422.72, 40,612.64 and 18,812.39

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Solution

The fourth proportional to 29,422.72, 40,612.64 and 18,812.39 is: 25,967.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,422.72 : 40,612.64 = 18,812.39 : x
  2. Step 2: Convert to fraction form
    29,422.72/40,612.64 = 18,812.39/x
  3. Step 3: Cross multiply
    29,422.72x = 40,612.64 × 18,812.39
  4. Step 4: Simplify right side
    29,422.72x = 764,020,822.61
  5. Step 5: Solve for x
    x = 764,020,822.61/29,422.72
  6. Step 6: Final answer
    x = 25,967.04

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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.