Home / 27,947.96-38,568.90-15,201.87

Finding the Fourth Proportional to 27,947.96, 38,568.90 and 15,201.87

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Solution

The fourth proportional to 27,947.96, 38,568.90 and 15,201.87 is: 20,978.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,947.96 : 38,568.90 = 15,201.87 : x
  2. Step 2: Convert to fraction form
    27,947.96/38,568.90 = 15,201.87/x
  3. Step 3: Cross multiply
    27,947.96x = 38,568.90 × 15,201.87
  4. Step 4: Simplify right side
    27,947.96x = 586,319,403.84
  5. Step 5: Solve for x
    x = 586,319,403.84/27,947.96
  6. Step 6: Final answer
    x = 20,978.97

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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.