Home / 21,266.93-31,905.14-6,476.99

Finding the Fourth Proportional to 21,266.93, 31,905.14 and 6,476.99

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Solution

The fourth proportional to 21,266.93, 31,905.14 and 6,476.99 is: 9,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,266.93 : 31,905.14 = 6,476.99 : x
  2. Step 2: Convert to fraction form
    21,266.93/31,905.14 = 6,476.99/x
  3. Step 3: Cross multiply
    21,266.93x = 31,905.14 × 6,476.99
  4. Step 4: Simplify right side
    21,266.93x = 206,649,240.34
  5. Step 5: Solve for x
    x = 206,649,240.34/21,266.93
  6. Step 6: Final answer
    x = 9,716.93

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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.