Home / 20,669.31-31,002.30-6,625.58

Finding the Fourth Proportional to 20,669.31, 31,002.30 and 6,625.58

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Solution

The fourth proportional to 20,669.31, 31,002.30 and 6,625.58 is: 9,937.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,669.31 : 31,002.30 = 6,625.58 : x
  2. Step 2: Convert to fraction form
    20,669.31/31,002.30 = 6,625.58/x
  3. Step 3: Cross multiply
    20,669.31x = 31,002.30 × 6,625.58
  4. Step 4: Simplify right side
    20,669.31x = 205,408,063.82
  5. Step 5: Solve for x
    x = 205,408,063.82/20,669.31
  6. Step 6: Final answer
    x = 9,937.83

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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.