Home / 28,195.08-38,869.02-20,234.76

Finding the Fourth Proportional to 28,195.08, 38,869.02 and 20,234.76

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Solution

The fourth proportional to 28,195.08, 38,869.02 and 20,234.76 is: 27,895.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,195.08 : 38,869.02 = 20,234.76 : x
  2. Step 2: Convert to fraction form
    28,195.08/38,869.02 = 20,234.76/x
  3. Step 3: Cross multiply
    28,195.08x = 38,869.02 × 20,234.76
  4. Step 4: Simplify right side
    28,195.08x = 786,505,291.14
  5. Step 5: Solve for x
    x = 786,505,291.14/28,195.08
  6. Step 6: Final answer
    x = 27,895.13

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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.