Home / 27,853.08-38,423.79-18,289.23

Finding the Fourth Proportional to 27,853.08, 38,423.79 and 18,289.23

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Solution

The fourth proportional to 27,853.08, 38,423.79 and 18,289.23 is: 25,230.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,853.08 : 38,423.79 = 18,289.23 : x
  2. Step 2: Convert to fraction form
    27,853.08/38,423.79 = 18,289.23/x
  3. Step 3: Cross multiply
    27,853.08x = 38,423.79 × 18,289.23
  4. Step 4: Simplify right side
    27,853.08x = 702,741,532.78
  5. Step 5: Solve for x
    x = 702,741,532.78/27,853.08
  6. Step 6: Final answer
    x = 25,230.30

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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.