Home / 27,864.30-38,475.09-18,311.70

Finding the Fourth Proportional to 27,864.30, 38,475.09 and 18,311.70

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Solution

The fourth proportional to 27,864.30, 38,475.09 and 18,311.70 is: 25,284.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,864.30 : 38,475.09 = 18,311.70 : x
  2. Step 2: Convert to fraction form
    27,864.30/38,475.09 = 18,311.70/x
  3. Step 3: Cross multiply
    27,864.30x = 38,475.09 × 18,311.70
  4. Step 4: Simplify right side
    27,864.30x = 704,544,305.55
  5. Step 5: Solve for x
    x = 704,544,305.55/27,864.30
  6. Step 6: Final answer
    x = 25,284.84

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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.