Home / 21,246.25-31,869.42-7,395.25

Finding the Fourth Proportional to 21,246.25, 31,869.42 and 7,395.25

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Solution

The fourth proportional to 21,246.25, 31,869.42 and 7,395.25 is: 11,092.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246.25 : 31,869.42 = 7,395.25 : x
  2. Step 2: Convert to fraction form
    21,246.25/31,869.42 = 7,395.25/x
  3. Step 3: Cross multiply
    21,246.25x = 31,869.42 × 7,395.25
  4. Step 4: Simplify right side
    21,246.25x = 235,682,328.26
  5. Step 5: Solve for x
    x = 235,682,328.26/21,246.25
  6. Step 6: Final answer
    x = 11,092.89

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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.