Home / 28,487.52-39,294.48-18,927.20

Finding the Fourth Proportional to 28,487.52, 39,294.48 and 18,927.20

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Solution

The fourth proportional to 28,487.52, 39,294.48 and 18,927.20 is: 26,107.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487.52 : 39,294.48 = 18,927.20 : x
  2. Step 2: Convert to fraction form
    28,487.52/39,294.48 = 18,927.20/x
  3. Step 3: Cross multiply
    28,487.52x = 39,294.48 × 18,927.20
  4. Step 4: Simplify right side
    28,487.52x = 743,734,481.86
  5. Step 5: Solve for x
    x = 743,734,481.86/28,487.52
  6. Step 6: Final answer
    x = 26,107.38

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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.