Home / 20,722.13-31,083.28-6,683.21

Finding the Fourth Proportional to 20,722.13, 31,083.28 and 6,683.21

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Solution

The fourth proportional to 20,722.13, 31,083.28 and 6,683.21 is: 10,024.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,722.13 : 31,083.28 = 6,683.21 : x
  2. Step 2: Convert to fraction form
    20,722.13/31,083.28 = 6,683.21/x
  3. Step 3: Cross multiply
    20,722.13x = 31,083.28 × 6,683.21
  4. Step 4: Simplify right side
    20,722.13x = 207,736,032.17
  5. Step 5: Solve for x
    x = 207,736,032.17/20,722.13
  6. Step 6: Final answer
    x = 10,024.84

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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.