Home / 28,224.11-38,949.05-15,648.86

Finding the Fourth Proportional to 28,224.11, 38,949.05 and 15,648.86

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Solution

The fourth proportional to 28,224.11, 38,949.05 and 15,648.86 is: 21,595.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,224.11 : 38,949.05 = 15,648.86 : x
  2. Step 2: Convert to fraction form
    28,224.11/38,949.05 = 15,648.86/x
  3. Step 3: Cross multiply
    28,224.11x = 38,949.05 × 15,648.86
  4. Step 4: Simplify right side
    28,224.11x = 609,508,367.08
  5. Step 5: Solve for x
    x = 609,508,367.08/28,224.11
  6. Step 6: Final answer
    x = 21,595.31

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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.