Home / 31,226.79-43,100.68-19,125.09

Finding the Fourth Proportional to 31,226.79, 43,100.68 and 19,125.09

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Solution

The fourth proportional to 31,226.79, 43,100.68 and 19,125.09 is: 26,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,226.79 : 43,100.68 = 19,125.09 : x
  2. Step 2: Convert to fraction form
    31,226.79/43,100.68 = 19,125.09/x
  3. Step 3: Cross multiply
    31,226.79x = 43,100.68 × 19,125.09
  4. Step 4: Simplify right side
    31,226.79x = 824,304,304.68
  5. Step 5: Solve for x
    x = 824,304,304.68/31,226.79
  6. Step 6: Final answer
    x = 26,397.34

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Half scale
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Double scale
Find fourth proportional to 31,227.79, 43,102.06 and 19,126.09
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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.