Home / 40,853.60-61,274.40-12,767.12

Finding the Fourth Proportional to 40,853.60, 61,274.40 and 12,767.12

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Solution

The fourth proportional to 40,853.60, 61,274.40 and 12,767.12 is: 19,148.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,853.60 : 61,274.40 = 12,767.12 : x
  2. Step 2: Convert to fraction form
    40,853.60/61,274.40 = 12,767.12/x
  3. Step 3: Cross multiply
    40,853.60x = 61,274.40 × 12,767.12
  4. Step 4: Simplify right side
    40,853.60x = 782,297,617.73
  5. Step 5: Solve for x
    x = 782,297,617.73/40,853.60
  6. Step 6: Final answer
    x = 19,148.80

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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.