Home / 39,181.59-54,069.10-21,276.20

Finding the Fourth Proportional to 39,181.59, 54,069.10 and 21,276.20

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Solution

The fourth proportional to 39,181.59, 54,069.10 and 21,276.20 is: 29,360.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.59 : 54,069.10 = 21,276.20 : x
  2. Step 2: Convert to fraction form
    39,181.59/54,069.10 = 21,276.20/x
  3. Step 3: Cross multiply
    39,181.59x = 54,069.10 × 21,276.20
  4. Step 4: Simplify right side
    39,181.59x = 1,150,385,067.40
  5. Step 5: Solve for x
    x = 1,150,385,067.40/39,181.59
  6. Step 6: Final answer
    x = 29,360.35

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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.