Home / 21,841.62-30,141.54-12,767.51

Finding the Fourth Proportional to 21,841.62, 30,141.54 and 12,767.51

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Solution

The fourth proportional to 21,841.62, 30,141.54 and 12,767.51 is: 17,619.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,841.62 : 30,141.54 = 12,767.51 : x
  2. Step 2: Convert to fraction form
    21,841.62/30,141.54 = 12,767.51/x
  3. Step 3: Cross multiply
    21,841.62x = 30,141.54 × 12,767.51
  4. Step 4: Simplify right side
    21,841.62x = 384,832,262.66
  5. Step 5: Solve for x
    x = 384,832,262.66/21,841.62
  6. Step 6: Final answer
    x = 17,619.22

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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.