Home / 20,320.72-30,460.26-13,747.56

Finding the Fourth Proportional to 20,320.72, 30,460.26 and 13,747.56

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Solution

The fourth proportional to 20,320.72, 30,460.26 and 13,747.56 is: 20,607.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,320.72 : 30,460.26 = 13,747.56 : x
  2. Step 2: Convert to fraction form
    20,320.72/30,460.26 = 13,747.56/x
  3. Step 3: Cross multiply
    20,320.72x = 30,460.26 × 13,747.56
  4. Step 4: Simplify right side
    20,320.72x = 418,754,251.97
  5. Step 5: Solve for x
    x = 418,754,251.97/20,320.72
  6. Step 6: Final answer
    x = 20,607.25

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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.