Home / 27,659.50-38,171.46-15,563.76

Finding the Fourth Proportional to 27,659.50, 38,171.46 and 15,563.76

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Solution

The fourth proportional to 27,659.50, 38,171.46 and 15,563.76 is: 21,478.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,659.50 : 38,171.46 = 15,563.76 : x
  2. Step 2: Convert to fraction form
    27,659.50/38,171.46 = 15,563.76/x
  3. Step 3: Cross multiply
    27,659.50x = 38,171.46 × 15,563.76
  4. Step 4: Simplify right side
    27,659.50x = 594,091,442.29
  5. Step 5: Solve for x
    x = 594,091,442.29/27,659.50
  6. Step 6: Final answer
    x = 21,478.75

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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.