Home / 20,037.50-27,652.80-11,540.90

Finding the Fourth Proportional to 20,037.50, 27,652.80 and 11,540.90

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Solution

The fourth proportional to 20,037.50, 27,652.80 and 11,540.90 is: 15,927.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,037.50 : 27,652.80 = 11,540.90 : x
  2. Step 2: Convert to fraction form
    20,037.50/27,652.80 = 11,540.90/x
  3. Step 3: Cross multiply
    20,037.50x = 27,652.80 × 11,540.90
  4. Step 4: Simplify right side
    20,037.50x = 319,138,199.52
  5. Step 5: Solve for x
    x = 319,138,199.52/20,037.50
  6. Step 6: Final answer
    x = 15,927.05

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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.