Home / 21,184.29-29,207.84-13,617.27

Finding the Fourth Proportional to 21,184.29, 29,207.84 and 13,617.27

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Solution

The fourth proportional to 21,184.29, 29,207.84 and 13,617.27 is: 18,774.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,184.29 : 29,207.84 = 13,617.27 : x
  2. Step 2: Convert to fraction form
    21,184.29/29,207.84 = 13,617.27/x
  3. Step 3: Cross multiply
    21,184.29x = 29,207.84 × 13,617.27
  4. Step 4: Simplify right side
    21,184.29x = 397,730,975.31
  5. Step 5: Solve for x
    x = 397,730,975.31/21,184.29
  6. Step 6: Final answer
    x = 18,774.81

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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.