Home / 27,920.34-38,517.93-15,980.94

Finding the Fourth Proportional to 27,920.34, 38,517.93 and 15,980.94

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Solution

The fourth proportional to 27,920.34, 38,517.93 and 15,980.94 is: 22,046.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,920.34 : 38,517.93 = 15,980.94 : x
  2. Step 2: Convert to fraction form
    27,920.34/38,517.93 = 15,980.94/x
  3. Step 3: Cross multiply
    27,920.34x = 38,517.93 × 15,980.94
  4. Step 4: Simplify right side
    27,920.34x = 615,552,728.25
  5. Step 5: Solve for x
    x = 615,552,728.25/27,920.34
  6. Step 6: Final answer
    x = 22,046.75

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Half scale
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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.