Home / 28,245.18-38,977.04-15,498.04

Finding the Fourth Proportional to 28,245.18, 38,977.04 and 15,498.04

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Solution

The fourth proportional to 28,245.18, 38,977.04 and 15,498.04 is: 21,386.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,245.18 : 38,977.04 = 15,498.04 : x
  2. Step 2: Convert to fraction form
    28,245.18/38,977.04 = 15,498.04/x
  3. Step 3: Cross multiply
    28,245.18x = 38,977.04 × 15,498.04
  4. Step 4: Simplify right side
    28,245.18x = 604,067,725.00
  5. Step 5: Solve for x
    x = 604,067,725.00/28,245.18
  6. Step 6: Final answer
    x = 21,386.58

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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.