Home / 21,246.18-31,869-9,551.13

Finding the Fourth Proportional to 21,246.18, 31,869 and 9,551.13

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Solution

The fourth proportional to 21,246.18, 31,869 and 9,551.13 is: 14,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.18 : 31,869 = 9,551.13 : x
  2. Step 2: Convert to fraction form
    21,246.18/31,869 = 9,551.13/x
  3. Step 3: Cross multiply
    21,246.18x = 31,869 × 9,551.13
  4. Step 4: Simplify right side
    21,246.18x = 304,384,961.97
  5. Step 5: Solve for x
    x = 304,384,961.97/21,246.18
  6. Step 6: Final answer
    x = 14,326.57

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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.