Home / 27,721.20-41,581.80-8,000.40

Finding the Fourth Proportional to 27,721.20, 41,581.80 and 8,000.40

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Solution

The fourth proportional to 27,721.20, 41,581.80 and 8,000.40 is: 12,000.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,721.20 : 41,581.80 = 8,000.40 : x
  2. Step 2: Convert to fraction form
    27,721.20/41,581.80 = 8,000.40/x
  3. Step 3: Cross multiply
    27,721.20x = 41,581.80 × 8,000.40
  4. Step 4: Simplify right side
    27,721.20x = 332,671,032.72
  5. Step 5: Solve for x
    x = 332,671,032.72/27,721.20
  6. Step 6: Final answer
    x = 12,000.60

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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.