Home / 40,414.78-60,623.79-20,688.04

Finding the Fourth Proportional to 40,414.78, 60,623.79 and 20,688.04

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Solution

The fourth proportional to 40,414.78, 60,623.79 and 20,688.04 is: 31,032.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,414.78 : 60,623.79 = 20,688.04 : x
  2. Step 2: Convert to fraction form
    40,414.78/60,623.79 = 20,688.04/x
  3. Step 3: Cross multiply
    40,414.78x = 60,623.79 × 20,688.04
  4. Step 4: Simplify right side
    40,414.78x = 1,254,187,392.47
  5. Step 5: Solve for x
    x = 1,254,187,392.47/40,414.78
  6. Step 6: Final answer
    x = 31,032.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.