Home / 39,446.52-54,434.19-21,538.09

Finding the Fourth Proportional to 39,446.52, 54,434.19 and 21,538.09

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Solution

The fourth proportional to 39,446.52, 54,434.19 and 21,538.09 is: 29,721.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,446.52 : 54,434.19 = 21,538.09 : x
  2. Step 2: Convert to fraction form
    39,446.52/54,434.19 = 21,538.09/x
  3. Step 3: Cross multiply
    39,446.52x = 54,434.19 × 21,538.09
  4. Step 4: Simplify right side
    39,446.52x = 1,172,408,483.30
  5. Step 5: Solve for x
    x = 1,172,408,483.30/39,446.52
  6. Step 6: Final answer
    x = 29,721.47

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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.