Home / 20,709.96-31,070.97-6,669.66

Finding the Fourth Proportional to 20,709.96, 31,070.97 and 6,669.66

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Solution

The fourth proportional to 20,709.96, 31,070.97 and 6,669.66 is: 10,006.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,709.96 : 31,070.97 = 6,669.66 : x
  2. Step 2: Convert to fraction form
    20,709.96/31,070.97 = 6,669.66/x
  3. Step 3: Cross multiply
    20,709.96x = 31,070.97 × 6,669.66
  4. Step 4: Simplify right side
    20,709.96x = 207,232,805.77
  5. Step 5: Solve for x
    x = 207,232,805.77/20,709.96
  6. Step 6: Final answer
    x = 10,006.43

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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.