Home / 21,706.29-29,954.75-12,274.65

Finding the Fourth Proportional to 21,706.29, 29,954.75 and 12,274.65

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Solution

The fourth proportional to 21,706.29, 29,954.75 and 12,274.65 is: 16,939.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,706.29 : 29,954.75 = 12,274.65 : x
  2. Step 2: Convert to fraction form
    21,706.29/29,954.75 = 12,274.65/x
  3. Step 3: Cross multiply
    21,706.29x = 29,954.75 × 12,274.65
  4. Step 4: Simplify right side
    21,706.29x = 367,684,010.71
  5. Step 5: Solve for x
    x = 367,684,010.71/21,706.29
  6. Step 6: Final answer
    x = 16,939.05

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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.