Home / 27,781.20-41,681.40-12,196.56

Finding the Fourth Proportional to 27,781.20, 41,681.40 and 12,196.56

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Solution

The fourth proportional to 27,781.20, 41,681.40 and 12,196.56 is: 18,299.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,781.20 : 41,681.40 = 12,196.56 : x
  2. Step 2: Convert to fraction form
    27,781.20/41,681.40 = 12,196.56/x
  3. Step 3: Cross multiply
    27,781.20x = 41,681.40 × 12,196.56
  4. Step 4: Simplify right side
    27,781.20x = 508,369,695.98
  5. Step 5: Solve for x
    x = 508,369,695.98/27,781.20
  6. Step 6: Final answer
    x = 18,299.05

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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.