Home / 20,548.73-28,357.28-11,117.29

Finding the Fourth Proportional to 20,548.73, 28,357.28 and 11,117.29

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Solution

The fourth proportional to 20,548.73, 28,357.28 and 11,117.29 is: 15,341.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.73 : 28,357.28 = 11,117.29 : x
  2. Step 2: Convert to fraction form
    20,548.73/28,357.28 = 11,117.29/x
  3. Step 3: Cross multiply
    20,548.73x = 28,357.28 × 11,117.29
  4. Step 4: Simplify right side
    20,548.73x = 315,256,105.37
  5. Step 5: Solve for x
    x = 315,256,105.37/20,548.73
  6. Step 6: Final answer
    x = 15,341.88

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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.