Home / 20,187.73-30,253.83-10,306.18

Finding the Fourth Proportional to 20,187.73, 30,253.83 and 10,306.18

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Solution

The fourth proportional to 20,187.73, 30,253.83 and 10,306.18 is: 15,445.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,187.73 : 30,253.83 = 10,306.18 : x
  2. Step 2: Convert to fraction form
    20,187.73/30,253.83 = 10,306.18/x
  3. Step 3: Cross multiply
    20,187.73x = 30,253.83 × 10,306.18
  4. Step 4: Simplify right side
    20,187.73x = 311,801,417.67
  5. Step 5: Solve for x
    x = 311,801,417.67/20,187.73
  6. Step 6: Final answer
    x = 15,445.10

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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.