Home / 27,895.14-38,496.18-15,319.90

Finding the Fourth Proportional to 27,895.14, 38,496.18 and 15,319.90

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Solution

The fourth proportional to 27,895.14, 38,496.18 and 15,319.90 is: 21,141.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,895.14 : 38,496.18 = 15,319.90 : x
  2. Step 2: Convert to fraction form
    27,895.14/38,496.18 = 15,319.90/x
  3. Step 3: Cross multiply
    27,895.14x = 38,496.18 × 15,319.90
  4. Step 4: Simplify right side
    27,895.14x = 589,757,627.98
  5. Step 5: Solve for x
    x = 589,757,627.98/27,895.14
  6. Step 6: Final answer
    x = 21,141.95

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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.