Home / 20,412.06-30,589.56-11,031.85

Finding the Fourth Proportional to 20,412.06, 30,589.56 and 11,031.85

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Solution

The fourth proportional to 20,412.06, 30,589.56 and 11,031.85 is: 16,532.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,412.06 : 30,589.56 = 11,031.85 : x
  2. Step 2: Convert to fraction form
    20,412.06/30,589.56 = 11,031.85/x
  3. Step 3: Cross multiply
    20,412.06x = 30,589.56 × 11,031.85
  4. Step 4: Simplify right side
    20,412.06x = 337,459,437.49
  5. Step 5: Solve for x
    x = 337,459,437.49/20,412.06
  6. Step 6: Final answer
    x = 16,532.36

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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.