Home / 27,713.13-38,245.06-15,138.69

Finding the Fourth Proportional to 27,713.13, 38,245.06 and 15,138.69

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Solution

The fourth proportional to 27,713.13, 38,245.06 and 15,138.69 is: 20,891.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,713.13 : 38,245.06 = 15,138.69 : x
  2. Step 2: Convert to fraction form
    27,713.13/38,245.06 = 15,138.69/x
  3. Step 3: Cross multiply
    27,713.13x = 38,245.06 × 15,138.69
  4. Step 4: Simplify right side
    27,713.13x = 578,980,107.37
  5. Step 5: Solve for x
    x = 578,980,107.37/27,713.13
  6. Step 6: Final answer
    x = 20,891.91

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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.