Home / 39,536.80-54,560.30-21,631.60

Finding the Fourth Proportional to 39,536.80, 54,560.30 and 21,631.60

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Solution

The fourth proportional to 39,536.80, 54,560.30 and 21,631.60 is: 29,851.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,536.80 : 54,560.30 = 21,631.60 : x
  2. Step 2: Convert to fraction form
    39,536.80/54,560.30 = 21,631.60/x
  3. Step 3: Cross multiply
    39,536.80x = 54,560.30 × 21,631.60
  4. Step 4: Simplify right side
    39,536.80x = 1,180,226,585.48
  5. Step 5: Solve for x
    x = 1,180,226,585.48/39,536.80
  6. Step 6: Final answer
    x = 29,851.34

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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.