Home / 29,404.61-40,605.26-18,812.85

Finding the Fourth Proportional to 29,404.61, 40,605.26 and 18,812.85

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Solution

The fourth proportional to 29,404.61, 40,605.26 and 18,812.85 is: 25,978.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,404.61 : 40,605.26 = 18,812.85 : x
  2. Step 2: Convert to fraction form
    29,404.61/40,605.26 = 18,812.85/x
  3. Step 3: Cross multiply
    29,404.61x = 40,605.26 × 18,812.85
  4. Step 4: Simplify right side
    29,404.61x = 763,900,665.59
  5. Step 5: Solve for x
    x = 763,900,665.59/29,404.61
  6. Step 6: Final answer
    x = 25,978.94

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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.