Home / 21,308.31-31,962.57-6,517.17

Finding the Fourth Proportional to 21,308.31, 31,962.57 and 6,517.17

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Solution

The fourth proportional to 21,308.31, 31,962.57 and 6,517.17 is: 9,775.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,308.31 : 31,962.57 = 6,517.17 : x
  2. Step 2: Convert to fraction form
    21,308.31/31,962.57 = 6,517.17/x
  3. Step 3: Cross multiply
    21,308.31x = 31,962.57 × 6,517.17
  4. Step 4: Simplify right side
    21,308.31x = 208,305,502.33
  5. Step 5: Solve for x
    x = 208,305,502.33/21,308.31
  6. Step 6: Final answer
    x = 9,775.79

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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.