Home / 27,359.72-41,041.20-8,640.36

Finding the Fourth Proportional to 27,359.72, 41,041.20 and 8,640.36

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Solution

The fourth proportional to 27,359.72, 41,041.20 and 8,640.36 is: 12,961.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,359.72 : 41,041.20 = 8,640.36 : x
  2. Step 2: Convert to fraction form
    27,359.72/41,041.20 = 8,640.36/x
  3. Step 3: Cross multiply
    27,359.72x = 41,041.20 × 8,640.36
  4. Step 4: Simplify right side
    27,359.72x = 354,610,742.83
  5. Step 5: Solve for x
    x = 354,610,742.83/27,359.72
  6. Step 6: Final answer
    x = 12,961.05

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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.