Home / 39,253.82-54,168.71-21,348.81

Finding the Fourth Proportional to 39,253.82, 54,168.71 and 21,348.81

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Solution

The fourth proportional to 39,253.82, 54,168.71 and 21,348.81 is: 29,460.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,253.82 : 54,168.71 = 21,348.81 : x
  2. Step 2: Convert to fraction form
    39,253.82/54,168.71 = 21,348.81/x
  3. Step 3: Cross multiply
    39,253.82x = 54,168.71 × 21,348.81
  4. Step 4: Simplify right side
    39,253.82x = 1,156,437,390.99
  5. Step 5: Solve for x
    x = 1,156,437,390.99/39,253.82
  6. Step 6: Final answer
    x = 29,460.51

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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.