Home / 27,180.06-40,785.54-21,240.19

Finding the Fourth Proportional to 27,180.06, 40,785.54 and 21,240.19

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Solution

The fourth proportional to 27,180.06, 40,785.54 and 21,240.19 is: 31,872.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,180.06 : 40,785.54 = 21,240.19 : x
  2. Step 2: Convert to fraction form
    27,180.06/40,785.54 = 21,240.19/x
  3. Step 3: Cross multiply
    27,180.06x = 40,785.54 × 21,240.19
  4. Step 4: Simplify right side
    27,180.06x = 866,292,618.85
  5. Step 5: Solve for x
    x = 866,292,618.85/27,180.06
  6. Step 6: Final answer
    x = 31,872.36

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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.