Home / 40,402.60-60,576.54-20,642.92

Finding the Fourth Proportional to 40,402.60, 60,576.54 and 20,642.92

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Solution

The fourth proportional to 40,402.60, 60,576.54 and 20,642.92 is: 30,950.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,402.60 : 60,576.54 = 20,642.92 : x
  2. Step 2: Convert to fraction form
    40,402.60/60,576.54 = 20,642.92/x
  3. Step 3: Cross multiply
    40,402.60x = 60,576.54 × 20,642.92
  4. Step 4: Simplify right side
    40,402.60x = 1,250,476,669.10
  5. Step 5: Solve for x
    x = 1,250,476,669.10/40,402.60
  6. Step 6: Final answer
    x = 30,950.40

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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.