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Finding the Fourth Proportional to 21,899.26, 32,854.06 and 7,108.14

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Solution

The fourth proportional to 21,899.26, 32,854.06 and 7,108.14 is: 10,663.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,899.26 : 32,854.06 = 7,108.14 : x
  2. Step 2: Convert to fraction form
    21,899.26/32,854.06 = 7,108.14/x
  3. Step 3: Cross multiply
    21,899.26x = 32,854.06 × 7,108.14
  4. Step 4: Simplify right side
    21,899.26x = 233,531,258.05
  5. Step 5: Solve for x
    x = 233,531,258.05/21,899.26
  6. Step 6: Final answer
    x = 10,663.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.