Home / 20,452.50-28,219.59-11,498.22

Finding the Fourth Proportional to 20,452.50, 28,219.59 and 11,498.22

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Solution

The fourth proportional to 20,452.50, 28,219.59 and 11,498.22 is: 15,864.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.50 : 28,219.59 = 11,498.22 : x
  2. Step 2: Convert to fraction form
    20,452.50/28,219.59 = 11,498.22/x
  3. Step 3: Cross multiply
    20,452.50x = 28,219.59 × 11,498.22
  4. Step 4: Simplify right side
    20,452.50x = 324,475,054.13
  5. Step 5: Solve for x
    x = 324,475,054.13/20,452.50
  6. Step 6: Final answer
    x = 15,864.81

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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.