Home / 20,337.89-30,507.03-9,805.46

Finding the Fourth Proportional to 20,337.89, 30,507.03 and 9,805.46

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Solution

The fourth proportional to 20,337.89, 30,507.03 and 9,805.46 is: 14,708.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,337.89 : 30,507.03 = 9,805.46 : x
  2. Step 2: Convert to fraction form
    20,337.89/30,507.03 = 9,805.46/x
  3. Step 3: Cross multiply
    20,337.89x = 30,507.03 × 9,805.46
  4. Step 4: Simplify right side
    20,337.89x = 299,135,309.85
  5. Step 5: Solve for x
    x = 299,135,309.85/20,337.89
  6. Step 6: Final answer
    x = 14,708.28

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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.