Home / 21,523.47-29,701.62-11,963.97

Finding the Fourth Proportional to 21,523.47, 29,701.62 and 11,963.97

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Solution

The fourth proportional to 21,523.47, 29,701.62 and 11,963.97 is: 16,509.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,523.47 : 29,701.62 = 11,963.97 : x
  2. Step 2: Convert to fraction form
    21,523.47/29,701.62 = 11,963.97/x
  3. Step 3: Cross multiply
    21,523.47x = 29,701.62 × 11,963.97
  4. Step 4: Simplify right side
    21,523.47x = 355,349,290.63
  5. Step 5: Solve for x
    x = 355,349,290.63/21,523.47
  6. Step 6: Final answer
    x = 16,509.85

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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.