Home / 20,324.16-28,047.84-11,371.58

Finding the Fourth Proportional to 20,324.16, 28,047.84 and 11,371.58

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Solution

The fourth proportional to 20,324.16, 28,047.84 and 11,371.58 is: 15,693.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,324.16 : 28,047.84 = 11,371.58 : x
  2. Step 2: Convert to fraction form
    20,324.16/28,047.84 = 11,371.58/x
  3. Step 3: Cross multiply
    20,324.16x = 28,047.84 × 11,371.58
  4. Step 4: Simplify right side
    20,324.16x = 318,948,199.53
  5. Step 5: Solve for x
    x = 318,948,199.53/20,324.16
  6. Step 6: Final answer
    x = 15,693.06

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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.