Home / 39,331.44-54,278.64-21,427.02

Finding the Fourth Proportional to 39,331.44, 54,278.64 and 21,427.02

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Solution

The fourth proportional to 39,331.44, 54,278.64 and 21,427.02 is: 29,569.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,331.44 : 54,278.64 = 21,427.02 : x
  2. Step 2: Convert to fraction form
    39,331.44/54,278.64 = 21,427.02/x
  3. Step 3: Cross multiply
    39,331.44x = 54,278.64 × 21,427.02
  4. Step 4: Simplify right side
    39,331.44x = 1,163,029,504.85
  5. Step 5: Solve for x
    x = 1,163,029,504.85/39,331.44
  6. Step 6: Final answer
    x = 29,569.97

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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.