Home / 27,751.46-38,301.54-20,628.68

Finding the Fourth Proportional to 27,751.46, 38,301.54 and 20,628.68

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Solution

The fourth proportional to 27,751.46, 38,301.54 and 20,628.68 is: 28,470.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,751.46 : 38,301.54 = 20,628.68 : x
  2. Step 2: Convert to fraction form
    27,751.46/38,301.54 = 20,628.68/x
  3. Step 3: Cross multiply
    27,751.46x = 38,301.54 × 20,628.68
  4. Step 4: Simplify right side
    27,751.46x = 790,110,020.66
  5. Step 5: Solve for x
    x = 790,110,020.66/27,751.46
  6. Step 6: Final answer
    x = 28,470.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.