Home / 20,349.54-28,110.66-15,352.24

Finding the Fourth Proportional to 20,349.54, 28,110.66 and 15,352.24

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Solution

The fourth proportional to 20,349.54, 28,110.66 and 15,352.24 is: 21,207.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,349.54 : 28,110.66 = 15,352.24 : x
  2. Step 2: Convert to fraction form
    20,349.54/28,110.66 = 15,352.24/x
  3. Step 3: Cross multiply
    20,349.54x = 28,110.66 × 15,352.24
  4. Step 4: Simplify right side
    20,349.54x = 431,561,522.12
  5. Step 5: Solve for x
    x = 431,561,522.12/20,349.54
  6. Step 6: Final answer
    x = 21,207.44

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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.