Home / 38,553.60-53,201.40-21,785.52

Finding the Fourth Proportional to 38,553.60, 53,201.40 and 21,785.52

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Solution

The fourth proportional to 38,553.60, 53,201.40 and 21,785.52 is: 30,062.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,553.60 : 53,201.40 = 21,785.52 : x
  2. Step 2: Convert to fraction form
    38,553.60/53,201.40 = 21,785.52/x
  3. Step 3: Cross multiply
    38,553.60x = 53,201.40 × 21,785.52
  4. Step 4: Simplify right side
    38,553.60x = 1,159,020,163.73
  5. Step 5: Solve for x
    x = 1,159,020,163.73/38,553.60
  6. Step 6: Final answer
    x = 30,062.57

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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.