Home / 40,000.92-55,201.29-21,851.89

Finding the Fourth Proportional to 40,000.92, 55,201.29 and 21,851.89

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Solution

The fourth proportional to 40,000.92, 55,201.29 and 21,851.89 is: 30,155.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,000.92 : 55,201.29 = 21,851.89 : x
  2. Step 2: Convert to fraction form
    40,000.92/55,201.29 = 21,851.89/x
  3. Step 3: Cross multiply
    40,000.92x = 55,201.29 × 21,851.89
  4. Step 4: Simplify right side
    40,000.92x = 1,206,252,516.94
  5. Step 5: Solve for x
    x = 1,206,252,516.94/40,000.92
  6. Step 6: Final answer
    x = 30,155.62

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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.