Home / 27,905.10-38,515.68-15,975.33

Finding the Fourth Proportional to 27,905.10, 38,515.68 and 15,975.33

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Solution

The fourth proportional to 27,905.10, 38,515.68 and 15,975.33 is: 22,049.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,905.10 : 38,515.68 = 15,975.33 : x
  2. Step 2: Convert to fraction form
    27,905.10/38,515.68 = 15,975.33/x
  3. Step 3: Cross multiply
    27,905.10x = 38,515.68 × 15,975.33
  4. Step 4: Simplify right side
    27,905.10x = 615,300,698.17
  5. Step 5: Solve for x
    x = 615,300,698.17/27,905.10
  6. Step 6: Final answer
    x = 22,049.76

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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.