Home / 39,261.88-54,181.68-21,357.04

Finding the Fourth Proportional to 39,261.88, 54,181.68 and 21,357.04

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Solution

The fourth proportional to 39,261.88, 54,181.68 and 21,357.04 is: 29,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,261.88 : 54,181.68 = 21,357.04 : x
  2. Step 2: Convert to fraction form
    39,261.88/54,181.68 = 21,357.04/x
  3. Step 3: Cross multiply
    39,261.88x = 54,181.68 × 21,357.04
  4. Step 4: Simplify right side
    39,261.88x = 1,157,160,307.03
  5. Step 5: Solve for x
    x = 1,157,160,307.03/39,261.88
  6. Step 6: Final answer
    x = 29,472.87

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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.