Home / 39,253.79-54,169.83-21,348.95

Finding the Fourth Proportional to 39,253.79, 54,169.83 and 21,348.95

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Solution

The fourth proportional to 39,253.79, 54,169.83 and 21,348.95 is: 29,461.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,253.79 : 54,169.83 = 21,348.95 : x
  2. Step 2: Convert to fraction form
    39,253.79/54,169.83 = 21,348.95/x
  3. Step 3: Cross multiply
    39,253.79x = 54,169.83 × 21,348.95
  4. Step 4: Simplify right side
    39,253.79x = 1,156,468,721.33
  5. Step 5: Solve for x
    x = 1,156,468,721.33/39,253.79
  6. Step 6: Final answer
    x = 29,461.33

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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.