Home / 28,020.14-38,614.61-20,048.48

Finding the Fourth Proportional to 28,020.14, 38,614.61 and 20,048.48

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Solution

The fourth proportional to 28,020.14, 38,614.61 and 20,048.48 is: 27,628.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,020.14 : 38,614.61 = 20,048.48 : x
  2. Step 2: Convert to fraction form
    28,020.14/38,614.61 = 20,048.48/x
  3. Step 3: Cross multiply
    28,020.14x = 38,614.61 × 20,048.48
  4. Step 4: Simplify right side
    28,020.14x = 774,164,043.22
  5. Step 5: Solve for x
    x = 774,164,043.22/28,020.14
  6. Step 6: Final answer
    x = 27,628.85

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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.