Home / 20,301.68-28,016.90-11,350.19

Finding the Fourth Proportional to 20,301.68, 28,016.90 and 11,350.19

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Solution

The fourth proportional to 20,301.68, 28,016.90 and 11,350.19 is: 15,663.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,301.68 : 28,016.90 = 11,350.19 : x
  2. Step 2: Convert to fraction form
    20,301.68/28,016.90 = 11,350.19/x
  3. Step 3: Cross multiply
    20,301.68x = 28,016.90 × 11,350.19
  4. Step 4: Simplify right side
    20,301.68x = 317,997,081.46
  5. Step 5: Solve for x
    x = 317,997,081.46/20,301.68
  6. Step 6: Final answer
    x = 15,663.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.