Home / 27,013.40-40,515.39-12,218.85

Finding the Fourth Proportional to 27,013.40, 40,515.39 and 12,218.85

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Solution

The fourth proportional to 27,013.40, 40,515.39 and 12,218.85 is: 18,326.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,013.40 : 40,515.39 = 12,218.85 : x
  2. Step 2: Convert to fraction form
    27,013.40/40,515.39 = 12,218.85/x
  3. Step 3: Cross multiply
    27,013.40x = 40,515.39 × 12,218.85
  4. Step 4: Simplify right side
    27,013.40x = 495,051,473.10
  5. Step 5: Solve for x
    x = 495,051,473.10/27,013.40
  6. Step 6: Final answer
    x = 18,326.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.