Home / 25,886.60-35,721.96-15,279.56

Finding the Fourth Proportional to 25,886.60, 35,721.96 and 15,279.56

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Solution

The fourth proportional to 25,886.60, 35,721.96 and 15,279.56 is: 21,084.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,886.60 : 35,721.96 = 15,279.56 : x
  2. Step 2: Convert to fraction form
    25,886.60/35,721.96 = 15,279.56/x
  3. Step 3: Cross multiply
    25,886.60x = 35,721.96 × 15,279.56
  4. Step 4: Simplify right side
    25,886.60x = 545,815,831.14
  5. Step 5: Solve for x
    x = 545,815,831.14/25,886.60
  6. Step 6: Final answer
    x = 21,084.88

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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.