Home / 21,664.72-29,895.24-17,199.28

Finding the Fourth Proportional to 21,664.72, 29,895.24 and 17,199.28

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Solution

The fourth proportional to 21,664.72, 29,895.24 and 17,199.28 is: 23,733.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,664.72 : 29,895.24 = 17,199.28 : x
  2. Step 2: Convert to fraction form
    21,664.72/29,895.24 = 17,199.28/x
  3. Step 3: Cross multiply
    21,664.72x = 29,895.24 × 17,199.28
  4. Step 4: Simplify right side
    21,664.72x = 514,176,603.43
  5. Step 5: Solve for x
    x = 514,176,603.43/21,664.72
  6. Step 6: Final answer
    x = 23,733.36

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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.