Home / 21,553.40-32,330.04-6,762.38

Finding the Fourth Proportional to 21,553.40, 32,330.04 and 6,762.38

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Solution

The fourth proportional to 21,553.40, 32,330.04 and 6,762.38 is: 10,143.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553.40 : 32,330.04 = 6,762.38 : x
  2. Step 2: Convert to fraction form
    21,553.40/32,330.04 = 6,762.38/x
  3. Step 3: Cross multiply
    21,553.40x = 32,330.04 × 6,762.38
  4. Step 4: Simplify right side
    21,553.40x = 218,628,015.90
  5. Step 5: Solve for x
    x = 218,628,015.90/21,553.40
  6. Step 6: Final answer
    x = 10,143.55

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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.