Home / 30,391.68-42,103.56-29,665.92

Finding the Fourth Proportional to 30,391.68, 42,103.56 and 29,665.92

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Solution

The fourth proportional to 30,391.68, 42,103.56 and 29,665.92 is: 41,098.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,391.68 : 42,103.56 = 29,665.92 : x
  2. Step 2: Convert to fraction form
    30,391.68/42,103.56 = 29,665.92/x
  3. Step 3: Cross multiply
    30,391.68x = 42,103.56 × 29,665.92
  4. Step 4: Simplify right side
    30,391.68x = 1,249,040,842.68
  5. Step 5: Solve for x
    x = 1,249,040,842.68/30,391.68
  6. Step 6: Final answer
    x = 41,098.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.