Home / 29,207.35-40,306.09-15,778.56

Finding the Fourth Proportional to 29,207.35, 40,306.09 and 15,778.56

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Solution

The fourth proportional to 29,207.35, 40,306.09 and 15,778.56 is: 21,774.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,207.35 : 40,306.09 = 15,778.56 : x
  2. Step 2: Convert to fraction form
    29,207.35/40,306.09 = 15,778.56/x
  3. Step 3: Cross multiply
    29,207.35x = 40,306.09 × 15,778.56
  4. Step 4: Simplify right side
    29,207.35x = 635,972,059.43
  5. Step 5: Solve for x
    x = 635,972,059.43/29,207.35
  6. Step 6: Final answer
    x = 21,774.38

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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.