Home / 39,393.73-54,363.26-21,488.74

Finding the Fourth Proportional to 39,393.73, 54,363.26 and 21,488.74

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Solution

The fourth proportional to 39,393.73, 54,363.26 and 21,488.74 is: 29,654.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,393.73 : 54,363.26 = 21,488.74 : x
  2. Step 2: Convert to fraction form
    39,393.73/54,363.26 = 21,488.74/x
  3. Step 3: Cross multiply
    39,393.73x = 54,363.26 × 21,488.74
  4. Step 4: Simplify right side
    39,393.73x = 1,168,197,687.88
  5. Step 5: Solve for x
    x = 1,168,197,687.88/39,393.73
  6. Step 6: Final answer
    x = 29,654.41

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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.