Home / 28,390.60-39,177.14-17,060.56

Finding the Fourth Proportional to 28,390.60, 39,177.14 and 17,060.56

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Solution

The fourth proportional to 28,390.60, 39,177.14 and 17,060.56 is: 23,542.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,390.60 : 39,177.14 = 17,060.56 : x
  2. Step 2: Convert to fraction form
    28,390.60/39,177.14 = 17,060.56/x
  3. Step 3: Cross multiply
    28,390.60x = 39,177.14 × 17,060.56
  4. Step 4: Simplify right side
    28,390.60x = 668,383,947.60
  5. Step 5: Solve for x
    x = 668,383,947.60/28,390.60
  6. Step 6: Final answer
    x = 23,542.44

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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.