Home / 38,013.25-52,456.63-20,785.30

Finding the Fourth Proportional to 38,013.25, 52,456.63 and 20,785.30

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Solution

The fourth proportional to 38,013.25, 52,456.63 and 20,785.30 is: 28,682.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,013.25 : 52,456.63 = 20,785.30 : x
  2. Step 2: Convert to fraction form
    38,013.25/52,456.63 = 20,785.30/x
  3. Step 3: Cross multiply
    38,013.25x = 52,456.63 × 20,785.30
  4. Step 4: Simplify right side
    38,013.25x = 1,090,326,791.54
  5. Step 5: Solve for x
    x = 1,090,326,791.54/38,013.25
  6. Step 6: Final answer
    x = 28,682.81

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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.