Home / 20,200.86-27,877.50-11,248.20

Finding the Fourth Proportional to 20,200.86, 27,877.50 and 11,248.20

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Solution

The fourth proportional to 20,200.86, 27,877.50 and 11,248.20 is: 15,522.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,200.86 : 27,877.50 = 11,248.20 : x
  2. Step 2: Convert to fraction form
    20,200.86/27,877.50 = 11,248.20/x
  3. Step 3: Cross multiply
    20,200.86x = 27,877.50 × 11,248.20
  4. Step 4: Simplify right side
    20,200.86x = 313,571,695.50
  5. Step 5: Solve for x
    x = 313,571,695.50/20,200.86
  6. Step 6: Final answer
    x = 15,522.69

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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.