Home / 39,347.88-54,299.82-21,443.16

Finding the Fourth Proportional to 39,347.88, 54,299.82 and 21,443.16

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Solution

The fourth proportional to 39,347.88, 54,299.82 and 21,443.16 is: 29,591.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,347.88 : 54,299.82 = 21,443.16 : x
  2. Step 2: Convert to fraction form
    39,347.88/54,299.82 = 21,443.16/x
  3. Step 3: Cross multiply
    39,347.88x = 54,299.82 × 21,443.16
  4. Step 4: Simplify right side
    39,347.88x = 1,164,359,728.23
  5. Step 5: Solve for x
    x = 1,164,359,728.23/39,347.88
  6. Step 6: Final answer
    x = 29,591.42

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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.