Home / 20,762.29-31,143.98-6,722.83

Finding the Fourth Proportional to 20,762.29, 31,143.98 and 6,722.83

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Solution

The fourth proportional to 20,762.29, 31,143.98 and 6,722.83 is: 10,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,762.29 : 31,143.98 = 6,722.83 : x
  2. Step 2: Convert to fraction form
    20,762.29/31,143.98 = 6,722.83/x
  3. Step 3: Cross multiply
    20,762.29x = 31,143.98 × 6,722.83
  4. Step 4: Simplify right side
    20,762.29x = 209,375,683.06
  5. Step 5: Solve for x
    x = 209,375,683.06/20,762.29
  6. Step 6: Final answer
    x = 10,084.42

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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.