Home / 20,669.68-31,006.64-6,626.24

Finding the Fourth Proportional to 20,669.68, 31,006.64 and 6,626.24

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Solution

The fourth proportional to 20,669.68, 31,006.64 and 6,626.24 is: 9,940.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.68 : 31,006.64 = 6,626.24 : x
  2. Step 2: Convert to fraction form
    20,669.68/31,006.64 = 6,626.24/x
  3. Step 3: Cross multiply
    20,669.68x = 31,006.64 × 6,626.24
  4. Step 4: Simplify right side
    20,669.68x = 205,457,438.23
  5. Step 5: Solve for x
    x = 205,457,438.23/20,669.68
  6. Step 6: Final answer
    x = 9,940.04

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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.