Home / 39,556.20-54,587.58-21,651.30

Finding the Fourth Proportional to 39,556.20, 54,587.58 and 21,651.30

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Solution

The fourth proportional to 39,556.20, 54,587.58 and 21,651.30 is: 29,878.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,556.20 : 54,587.58 = 21,651.30 : x
  2. Step 2: Convert to fraction form
    39,556.20/54,587.58 = 21,651.30/x
  3. Step 3: Cross multiply
    39,556.20x = 54,587.58 × 21,651.30
  4. Step 4: Simplify right side
    39,556.20x = 1,181,892,070.85
  5. Step 5: Solve for x
    x = 1,181,892,070.85/39,556.20
  6. Step 6: Final answer
    x = 29,878.81

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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.