Home / 27,708.80-38,228.66-15,769.15

Finding the Fourth Proportional to 27,708.80, 38,228.66 and 15,769.15

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Solution

The fourth proportional to 27,708.80, 38,228.66 and 15,769.15 is: 21,756.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,708.80 : 38,228.66 = 15,769.15 : x
  2. Step 2: Convert to fraction form
    27,708.80/38,228.66 = 15,769.15/x
  3. Step 3: Cross multiply
    27,708.80x = 38,228.66 × 15,769.15
  4. Step 4: Simplify right side
    27,708.80x = 602,833,358.56
  5. Step 5: Solve for x
    x = 602,833,358.56/27,708.80
  6. Step 6: Final answer
    x = 21,756.02

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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.