Home / 21,890.40-32,828.31-7,095.75

Finding the Fourth Proportional to 21,890.40, 32,828.31 and 7,095.75

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Solution

The fourth proportional to 21,890.40, 32,828.31 and 7,095.75 is: 10,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,890.40 : 32,828.31 = 7,095.75 : x
  2. Step 2: Convert to fraction form
    21,890.40/32,828.31 = 7,095.75/x
  3. Step 3: Cross multiply
    21,890.40x = 32,828.31 × 7,095.75
  4. Step 4: Simplify right side
    21,890.40x = 232,941,480.68
  5. Step 5: Solve for x
    x = 232,941,480.68/21,890.40
  6. Step 6: Final answer
    x = 10,641.26

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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.