Home / 22,121.10-30,519.59-14,168.12

Finding the Fourth Proportional to 22,121.10, 30,519.59 and 14,168.12

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Solution

The fourth proportional to 22,121.10, 30,519.59 and 14,168.12 is: 19,547.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,121.10 : 30,519.59 = 14,168.12 : x
  2. Step 2: Convert to fraction form
    22,121.10/30,519.59 = 14,168.12/x
  3. Step 3: Cross multiply
    22,121.10x = 30,519.59 × 14,168.12
  4. Step 4: Simplify right side
    22,121.10x = 432,404,990.03
  5. Step 5: Solve for x
    x = 432,404,990.03/22,121.10
  6. Step 6: Final answer
    x = 19,547.17

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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.