Home / 21,727.11-29,985.93-13,234.22

Finding the Fourth Proportional to 21,727.11, 29,985.93 and 13,234.22

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Solution

The fourth proportional to 21,727.11, 29,985.93 and 13,234.22 is: 18,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,727.11 : 29,985.93 = 13,234.22 : x
  2. Step 2: Convert to fraction form
    21,727.11/29,985.93 = 13,234.22/x
  3. Step 3: Cross multiply
    21,727.11x = 29,985.93 × 13,234.22
  4. Step 4: Simplify right side
    21,727.11x = 396,840,178.42
  5. Step 5: Solve for x
    x = 396,840,178.42/21,727.11
  6. Step 6: Final answer
    x = 18,264.75

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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.