Home / 27,901.95-38,505.11-15,155.38

Finding the Fourth Proportional to 27,901.95, 38,505.11 and 15,155.38

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Solution

The fourth proportional to 27,901.95, 38,505.11 and 15,155.38 is: 20,914.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,901.95 : 38,505.11 = 15,155.38 : x
  2. Step 2: Convert to fraction form
    27,901.95/38,505.11 = 15,155.38/x
  3. Step 3: Cross multiply
    27,901.95x = 38,505.11 × 15,155.38
  4. Step 4: Simplify right side
    27,901.95x = 583,559,613.21
  5. Step 5: Solve for x
    x = 583,559,613.21/27,901.95
  6. Step 6: Final answer
    x = 20,914.65

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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.