Home / 21,310.14-31,966.67-7,266.50

Finding the Fourth Proportional to 21,310.14, 31,966.67 and 7,266.50

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Solution

The fourth proportional to 21,310.14, 31,966.67 and 7,266.50 is: 10,900.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,310.14 : 31,966.67 = 7,266.50 : x
  2. Step 2: Convert to fraction form
    21,310.14/31,966.67 = 7,266.50/x
  3. Step 3: Cross multiply
    21,310.14x = 31,966.67 × 7,266.50
  4. Step 4: Simplify right side
    21,310.14x = 232,285,807.56
  5. Step 5: Solve for x
    x = 232,285,807.56/21,310.14
  6. Step 6: Final answer
    x = 10,900.25

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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.