Home / 40,142.56-55,397.13-22,237.81

Finding the Fourth Proportional to 40,142.56, 55,397.13 and 22,237.81

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Solution

The fourth proportional to 40,142.56, 55,397.13 and 22,237.81 is: 30,688.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,142.56 : 55,397.13 = 22,237.81 : x
  2. Step 2: Convert to fraction form
    40,142.56/55,397.13 = 22,237.81/x
  3. Step 3: Cross multiply
    40,142.56x = 55,397.13 × 22,237.81
  4. Step 4: Simplify right side
    40,142.56x = 1,231,910,851.49
  5. Step 5: Solve for x
    x = 1,231,910,851.49/40,142.56
  6. Step 6: Final answer
    x = 30,688.40

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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.