Home / 40,885.20-61,319.70-19,825.20

Finding the Fourth Proportional to 40,885.20, 61,319.70 and 19,825.20

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Solution

The fourth proportional to 40,885.20, 61,319.70 and 19,825.20 is: 29,733.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,885.20 : 61,319.70 = 19,825.20 : x
  2. Step 2: Convert to fraction form
    40,885.20/61,319.70 = 19,825.20/x
  3. Step 3: Cross multiply
    40,885.20x = 61,319.70 × 19,825.20
  4. Step 4: Simplify right side
    40,885.20x = 1,215,675,316.44
  5. Step 5: Solve for x
    x = 1,215,675,316.44/40,885.20
  6. Step 6: Final answer
    x = 29,733.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.