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Finding the Fourth Proportional to 40,392.89, 55,742.06 and 22,487.43

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Solution

The fourth proportional to 40,392.89, 55,742.06 and 22,487.43 is: 31,032.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,392.89 : 55,742.06 = 22,487.43 : x
  2. Step 2: Convert to fraction form
    40,392.89/55,742.06 = 22,487.43/x
  3. Step 3: Cross multiply
    40,392.89x = 55,742.06 × 22,487.43
  4. Step 4: Simplify right side
    40,392.89x = 1,253,495,728.52
  5. Step 5: Solve for x
    x = 1,253,495,728.52/40,392.89
  6. Step 6: Final answer
    x = 31,032.59

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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.