Home / 20,028.79-29,999.40-10,151.11

Finding the Fourth Proportional to 20,028.79, 29,999.40 and 10,151.11

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Solution

The fourth proportional to 20,028.79, 29,999.40 and 10,151.11 is: 15,204.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,028.79 : 29,999.40 = 10,151.11 : x
  2. Step 2: Convert to fraction form
    20,028.79/29,999.40 = 10,151.11/x
  3. Step 3: Cross multiply
    20,028.79x = 29,999.40 × 10,151.11
  4. Step 4: Simplify right side
    20,028.79x = 304,527,209.33
  5. Step 5: Solve for x
    x = 304,527,209.33/20,028.79
  6. Step 6: Final answer
    x = 15,204.47

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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.