Home / 39,348.64-54,299.19-21,443.59

Finding the Fourth Proportional to 39,348.64, 54,299.19 and 21,443.59

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Solution

The fourth proportional to 39,348.64, 54,299.19 and 21,443.59 is: 29,591.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,348.64 : 54,299.19 = 21,443.59 : x
  2. Step 2: Convert to fraction form
    39,348.64/54,299.19 = 21,443.59/x
  3. Step 3: Cross multiply
    39,348.64x = 54,299.19 × 21,443.59
  4. Step 4: Simplify right side
    39,348.64x = 1,164,369,567.69
  5. Step 5: Solve for x
    x = 1,164,369,567.69/39,348.64
  6. Step 6: Final answer
    x = 29,591.10

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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.