Home / 20,752.67-31,150.20-15,189.49

Finding the Fourth Proportional to 20,752.67, 31,150.20 and 15,189.49

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Solution

The fourth proportional to 20,752.67, 31,150.20 and 15,189.49 is: 22,799.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,752.67 : 31,150.20 = 15,189.49 : x
  2. Step 2: Convert to fraction form
    20,752.67/31,150.20 = 15,189.49/x
  3. Step 3: Cross multiply
    20,752.67x = 31,150.20 × 15,189.49
  4. Step 4: Simplify right side
    20,752.67x = 473,155,575.45
  5. Step 5: Solve for x
    x = 473,155,575.45/20,752.67
  6. Step 6: Final answer
    x = 22,799.74

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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.