Home / 27,963.74-38,590.35-15,388.76

Finding the Fourth Proportional to 27,963.74, 38,590.35 and 15,388.76

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Solution

The fourth proportional to 27,963.74, 38,590.35 and 15,388.76 is: 21,236.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,963.74 : 38,590.35 = 15,388.76 : x
  2. Step 2: Convert to fraction form
    27,963.74/38,590.35 = 15,388.76/x
  3. Step 3: Cross multiply
    27,963.74x = 38,590.35 × 15,388.76
  4. Step 4: Simplify right side
    27,963.74x = 593,857,634.47
  5. Step 5: Solve for x
    x = 593,857,634.47/27,963.74
  6. Step 6: Final answer
    x = 21,236.70

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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.