Home / 28,085.14-38,757.51-15,338.50

Finding the Fourth Proportional to 28,085.14, 38,757.51 and 15,338.50

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Solution

The fourth proportional to 28,085.14, 38,757.51 and 15,338.50 is: 21,167.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085.14 : 38,757.51 = 15,338.50 : x
  2. Step 2: Convert to fraction form
    28,085.14/38,757.51 = 15,338.50/x
  3. Step 3: Cross multiply
    28,085.14x = 38,757.51 × 15,338.50
  4. Step 4: Simplify right side
    28,085.14x = 594,482,067.14
  5. Step 5: Solve for x
    x = 594,482,067.14/28,085.14
  6. Step 6: Final answer
    x = 21,167.14

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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.