Home / 39,546.80-54,574.10-21,641.60

Finding the Fourth Proportional to 39,546.80, 54,574.10 and 21,641.60

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Solution

The fourth proportional to 39,546.80, 54,574.10 and 21,641.60 is: 29,865.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,546.80 : 54,574.10 = 21,641.60 : x
  2. Step 2: Convert to fraction form
    39,546.80/54,574.10 = 21,641.60/x
  3. Step 3: Cross multiply
    39,546.80x = 54,574.10 × 21,641.60
  4. Step 4: Simplify right side
    39,546.80x = 1,181,070,842.56
  5. Step 5: Solve for x
    x = 1,181,070,842.56/39,546.80
  6. Step 6: Final answer
    x = 29,865.14

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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.