Home / 40,013.64-55,219.20-27,931.68

Finding the Fourth Proportional to 40,013.64, 55,219.20 and 27,931.68

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Solution

The fourth proportional to 40,013.64, 55,219.20 and 27,931.68 is: 38,545.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,013.64 : 55,219.20 = 27,931.68 : x
  2. Step 2: Convert to fraction form
    40,013.64/55,219.20 = 27,931.68/x
  3. Step 3: Cross multiply
    40,013.64x = 55,219.20 × 27,931.68
  4. Step 4: Simplify right side
    40,013.64x = 1,542,365,024.26
  5. Step 5: Solve for x
    x = 1,542,365,024.26/40,013.64
  6. Step 6: Final answer
    x = 38,545.98

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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.