Home / 19,861.59-29,758.56-12,449.41

Finding the Fourth Proportional to 19,861.59, 29,758.56 and 12,449.41

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Solution

The fourth proportional to 19,861.59, 29,758.56 and 12,449.41 is: 18,652.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,861.59 : 29,758.56 = 12,449.41 : x
  2. Step 2: Convert to fraction form
    19,861.59/29,758.56 = 12,449.41/x
  3. Step 3: Cross multiply
    19,861.59x = 29,758.56 × 12,449.41
  4. Step 4: Simplify right side
    19,861.59x = 370,476,514.45
  5. Step 5: Solve for x
    x = 370,476,514.45/19,861.59
  6. Step 6: Final answer
    x = 18,652.91

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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.