Home / 21,731.39-32,603.64-9,087.29

Finding the Fourth Proportional to 21,731.39, 32,603.64 and 9,087.29

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Solution

The fourth proportional to 21,731.39, 32,603.64 and 9,087.29 is: 13,633.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,731.39 : 32,603.64 = 9,087.29 : x
  2. Step 2: Convert to fraction form
    21,731.39/32,603.64 = 9,087.29/x
  3. Step 3: Cross multiply
    21,731.39x = 32,603.64 × 9,087.29
  4. Step 4: Simplify right side
    21,731.39x = 296,278,731.74
  5. Step 5: Solve for x
    x = 296,278,731.74/21,731.39
  6. Step 6: Final answer
    x = 13,633.68

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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.