Home / 27,868.13-41,807.66-12,285.75

Finding the Fourth Proportional to 27,868.13, 41,807.66 and 12,285.75

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Solution

The fourth proportional to 27,868.13, 41,807.66 and 12,285.75 is: 18,431.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,868.13 : 41,807.66 = 12,285.75 : x
  2. Step 2: Convert to fraction form
    27,868.13/41,807.66 = 12,285.75/x
  3. Step 3: Cross multiply
    27,868.13x = 41,807.66 × 12,285.75
  4. Step 4: Simplify right side
    27,868.13x = 513,638,397.42
  5. Step 5: Solve for x
    x = 513,638,397.42/27,868.13
  6. Step 6: Final answer
    x = 18,431.04

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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.