Home / 27,921.90-38,532.52-15,175.08

Finding the Fourth Proportional to 27,921.90, 38,532.52 and 15,175.08

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Solution

The fourth proportional to 27,921.90, 38,532.52 and 15,175.08 is: 20,941.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,921.90 : 38,532.52 = 15,175.08 : x
  2. Step 2: Convert to fraction form
    27,921.90/38,532.52 = 15,175.08/x
  3. Step 3: Cross multiply
    27,921.90x = 38,532.52 × 15,175.08
  4. Step 4: Simplify right side
    27,921.90x = 584,734,016.70
  5. Step 5: Solve for x
    x = 584,734,016.70/27,921.90
  6. Step 6: Final answer
    x = 20,941.77

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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.