Home / 29,721.60-41,019.99-18,394.74

Finding the Fourth Proportional to 29,721.60, 41,019.99 and 18,394.74

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Solution

The fourth proportional to 29,721.60, 41,019.99 and 18,394.74 is: 25,387.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,721.60 : 41,019.99 = 18,394.74 : x
  2. Step 2: Convert to fraction form
    29,721.60/41,019.99 = 18,394.74/x
  3. Step 3: Cross multiply
    29,721.60x = 41,019.99 × 18,394.74
  4. Step 4: Simplify right side
    29,721.60x = 754,552,050.85
  5. Step 5: Solve for x
    x = 754,552,050.85/29,721.60
  6. Step 6: Final answer
    x = 25,387.33

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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.