Home / 28,492.56-39,318.48-15,917.04

Finding the Fourth Proportional to 28,492.56, 39,318.48 and 15,917.04

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Solution

The fourth proportional to 28,492.56, 39,318.48 and 15,917.04 is: 21,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,492.56 : 39,318.48 = 15,917.04 : x
  2. Step 2: Convert to fraction form
    28,492.56/39,318.48 = 15,917.04/x
  3. Step 3: Cross multiply
    28,492.56x = 39,318.48 × 15,917.04
  4. Step 4: Simplify right side
    28,492.56x = 625,833,818.90
  5. Step 5: Solve for x
    x = 625,833,818.90/28,492.56
  6. Step 6: Final answer
    x = 21,964.82

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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.