Home / 28,089.95-38,764.43-15,514.70

Finding the Fourth Proportional to 28,089.95, 38,764.43 and 15,514.70

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Solution

The fourth proportional to 28,089.95, 38,764.43 and 15,514.70 is: 21,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,089.95 : 38,764.43 = 15,514.70 : x
  2. Step 2: Convert to fraction form
    28,089.95/38,764.43 = 15,514.70/x
  3. Step 3: Cross multiply
    28,089.95x = 38,764.43 × 15,514.70
  4. Step 4: Simplify right side
    28,089.95x = 601,418,230.73
  5. Step 5: Solve for x
    x = 601,418,230.73/28,089.95
  6. Step 6: Final answer
    x = 21,410.45

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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.