Home / 27,505.71-41,279.27-20,129.18

Finding the Fourth Proportional to 27,505.71, 41,279.27 and 20,129.18

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Solution

The fourth proportional to 27,505.71, 41,279.27 and 20,129.18 is: 30,208.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,505.71 : 41,279.27 = 20,129.18 : x
  2. Step 2: Convert to fraction form
    27,505.71/41,279.27 = 20,129.18/x
  3. Step 3: Cross multiply
    27,505.71x = 41,279.27 × 20,129.18
  4. Step 4: Simplify right side
    27,505.71x = 830,917,549.06
  5. Step 5: Solve for x
    x = 830,917,549.06/27,505.71
  6. Step 6: Final answer
    x = 30,208.91

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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.