Home / 29,290.40-40,404.24-18,531.94

Finding the Fourth Proportional to 29,290.40, 40,404.24 and 18,531.94

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Solution

The fourth proportional to 29,290.40, 40,404.24 and 18,531.94 is: 25,563.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.40 : 40,404.24 = 18,531.94 : x
  2. Step 2: Convert to fraction form
    29,290.40/40,404.24 = 18,531.94/x
  3. Step 3: Cross multiply
    29,290.40x = 40,404.24 × 18,531.94
  4. Step 4: Simplify right side
    29,290.40x = 748,768,951.43
  5. Step 5: Solve for x
    x = 748,768,951.43/29,290.40
  6. Step 6: Final answer
    x = 25,563.63

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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.