Home / 40,522.16-60,785.40-12,818

Finding the Fourth Proportional to 40,522.16, 60,785.40 and 12,818

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Solution

The fourth proportional to 40,522.16, 60,785.40 and 12,818 is: 19,227.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,522.16 : 60,785.40 = 12,818 : x
  2. Step 2: Convert to fraction form
    40,522.16/60,785.40 = 12,818/x
  3. Step 3: Cross multiply
    40,522.16x = 60,785.40 × 12,818
  4. Step 4: Simplify right side
    40,522.16x = 779,147,257.20
  5. Step 5: Solve for x
    x = 779,147,257.20/40,522.16
  6. Step 6: Final answer
    x = 19,227.68

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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.