Home / 21,706.06-29,952.91-12,144.29

Finding the Fourth Proportional to 21,706.06, 29,952.91 and 12,144.29

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Solution

The fourth proportional to 21,706.06, 29,952.91 and 12,144.29 is: 16,758.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706.06 : 29,952.91 = 12,144.29 : x
  2. Step 2: Convert to fraction form
    21,706.06/29,952.91 = 12,144.29/x
  3. Step 3: Cross multiply
    21,706.06x = 29,952.91 × 12,144.29
  4. Step 4: Simplify right side
    21,706.06x = 363,756,809.20
  5. Step 5: Solve for x
    x = 363,756,809.20/21,706.06
  6. Step 6: Final answer
    x = 16,758.31

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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.