Home / 20,744.30-31,132.29-15,212.30

Finding the Fourth Proportional to 20,744.30, 31,132.29 and 15,212.30

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Solution

The fourth proportional to 20,744.30, 31,132.29 and 15,212.30 is: 22,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,744.30 : 31,132.29 = 15,212.30 : x
  2. Step 2: Convert to fraction form
    20,744.30/31,132.29 = 15,212.30/x
  3. Step 3: Cross multiply
    20,744.30x = 31,132.29 × 15,212.30
  4. Step 4: Simplify right side
    20,744.30x = 473,593,735.17
  5. Step 5: Solve for x
    x = 473,593,735.17/20,744.30
  6. Step 6: Final answer
    x = 22,830.07

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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.