Home / 39,617.94-54,673.19-21,712.56

Finding the Fourth Proportional to 39,617.94, 54,673.19 and 21,712.56

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Solution

The fourth proportional to 39,617.94, 54,673.19 and 21,712.56 is: 29,963.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.94 : 54,673.19 = 21,712.56 : x
  2. Step 2: Convert to fraction form
    39,617.94/54,673.19 = 21,712.56/x
  3. Step 3: Cross multiply
    39,617.94x = 54,673.19 × 21,712.56
  4. Step 4: Simplify right side
    39,617.94x = 1,187,094,809.70
  5. Step 5: Solve for x
    x = 1,187,094,809.70/39,617.94
  6. Step 6: Final answer
    x = 29,963.57

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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.