Home / 39,272.12-54,195.76-21,367.26

Finding the Fourth Proportional to 39,272.12, 54,195.76 and 21,367.26

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Solution

The fourth proportional to 39,272.12, 54,195.76 and 21,367.26 is: 29,486.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,272.12 : 54,195.76 = 21,367.26 : x
  2. Step 2: Convert to fraction form
    39,272.12/54,195.76 = 21,367.26/x
  3. Step 3: Cross multiply
    39,272.12x = 54,195.76 × 21,367.26
  4. Step 4: Simplify right side
    39,272.12x = 1,158,014,921.53
  5. Step 5: Solve for x
    x = 1,158,014,921.53/39,272.12
  6. Step 6: Final answer
    x = 29,486.95

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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.