Home / 21,554.40-32,332.96-6,763.90

Finding the Fourth Proportional to 21,554.40, 32,332.96 and 6,763.90

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Solution

The fourth proportional to 21,554.40, 32,332.96 and 6,763.90 is: 10,146.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,554.40 : 32,332.96 = 6,763.90 : x
  2. Step 2: Convert to fraction form
    21,554.40/32,332.96 = 6,763.90/x
  3. Step 3: Cross multiply
    21,554.40x = 32,332.96 × 6,763.90
  4. Step 4: Simplify right side
    21,554.40x = 218,696,833.65
  5. Step 5: Solve for x
    x = 218,696,833.65/21,554.40
  6. Step 6: Final answer
    x = 10,146.28

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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.