Home / 39,556.60-54,588.43-21,651.76

Finding the Fourth Proportional to 39,556.60, 54,588.43 and 21,651.76

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Solution

The fourth proportional to 39,556.60, 54,588.43 and 21,651.76 is: 29,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.60 : 54,588.43 = 21,651.76 : x
  2. Step 2: Convert to fraction form
    39,556.60/54,588.43 = 21,651.76/x
  3. Step 3: Cross multiply
    39,556.60x = 54,588.43 × 21,651.76
  4. Step 4: Simplify right side
    39,556.60x = 1,181,935,373.38
  5. Step 5: Solve for x
    x = 1,181,935,373.38/39,556.60
  6. Step 6: Final answer
    x = 29,879.60

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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.