Home / 20,247.80-30,306.90-10,864.76

Finding the Fourth Proportional to 20,247.80, 30,306.90 and 10,864.76

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Solution

The fourth proportional to 20,247.80, 30,306.90 and 10,864.76 is: 16,262.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,247.80 : 30,306.90 = 10,864.76 : x
  2. Step 2: Convert to fraction form
    20,247.80/30,306.90 = 10,864.76/x
  3. Step 3: Cross multiply
    20,247.80x = 30,306.90 × 10,864.76
  4. Step 4: Simplify right side
    20,247.80x = 329,277,194.84
  5. Step 5: Solve for x
    x = 329,277,194.84/20,247.80
  6. Step 6: Final answer
    x = 16,262.37

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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.