Home / 28,089.52-38,763.30-15,514

Finding the Fourth Proportional to 28,089.52, 38,763.30 and 15,514

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Solution

The fourth proportional to 28,089.52, 38,763.30 and 15,514 is: 21,409.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.52 : 38,763.30 = 15,514 : x
  2. Step 2: Convert to fraction form
    28,089.52/38,763.30 = 15,514/x
  3. Step 3: Cross multiply
    28,089.52x = 38,763.30 × 15,514
  4. Step 4: Simplify right side
    28,089.52x = 601,373,836.20
  5. Step 5: Solve for x
    x = 601,373,836.20/28,089.52
  6. Step 6: Final answer
    x = 21,409.19

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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.