Home / 27,589.81-38,081.97-18,031.09

Finding the Fourth Proportional to 27,589.81, 38,081.97 and 18,031.09

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Solution

The fourth proportional to 27,589.81, 38,081.97 and 18,031.09 is: 24,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,589.81 : 38,081.97 = 18,031.09 : x
  2. Step 2: Convert to fraction form
    27,589.81/38,081.97 = 18,031.09/x
  3. Step 3: Cross multiply
    27,589.81x = 38,081.97 × 18,031.09
  4. Step 4: Simplify right side
    27,589.81x = 686,659,428.45
  5. Step 5: Solve for x
    x = 686,659,428.45/27,589.81
  6. Step 6: Final answer
    x = 24,888.15

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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.