Home / 28,055.32-38,717.15-15,480.88

Finding the Fourth Proportional to 28,055.32, 38,717.15 and 15,480.88

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Solution

The fourth proportional to 28,055.32, 38,717.15 and 15,480.88 is: 21,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,055.32 : 38,717.15 = 15,480.88 : x
  2. Step 2: Convert to fraction form
    28,055.32/38,717.15 = 15,480.88/x
  3. Step 3: Cross multiply
    28,055.32x = 38,717.15 × 15,480.88
  4. Step 4: Simplify right side
    28,055.32x = 599,375,282.10
  5. Step 5: Solve for x
    x = 599,375,282.10/28,055.32
  6. Step 6: Final answer
    x = 21,364.05

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.