Home / 39,617.61-54,672.74-21,712.23

Finding the Fourth Proportional to 39,617.61, 54,672.74 and 21,712.23

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Solution

The fourth proportional to 39,617.61, 54,672.74 and 21,712.23 is: 29,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,617.61 : 54,672.74 = 21,712.23 : x
  2. Step 2: Convert to fraction form
    39,617.61/54,672.74 = 21,712.23/x
  3. Step 3: Cross multiply
    39,617.61x = 54,672.74 × 21,712.23
  4. Step 4: Simplify right side
    39,617.61x = 1,187,066,997.05
  5. Step 5: Solve for x
    x = 1,187,066,997.05/39,617.61
  6. Step 6: Final answer
    x = 29,963.11

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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.