Home / 19,775.70-29,646.33-8,081.46

Finding the Fourth Proportional to 19,775.70, 29,646.33 and 8,081.46

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Solution

The fourth proportional to 19,775.70, 29,646.33 and 8,081.46 is: 12,115.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,775.70 : 29,646.33 = 8,081.46 : x
  2. Step 2: Convert to fraction form
    19,775.70/29,646.33 = 8,081.46/x
  3. Step 3: Cross multiply
    19,775.70x = 29,646.33 × 8,081.46
  4. Step 4: Simplify right side
    19,775.70x = 239,585,630.04
  5. Step 5: Solve for x
    x = 239,585,630.04/19,775.70
  6. Step 6: Final answer
    x = 12,115.15

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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.