Home / 20,670.58-31,006.04-6,630.63

Finding the Fourth Proportional to 20,670.58, 31,006.04 and 6,630.63

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Solution

The fourth proportional to 20,670.58, 31,006.04 and 6,630.63 is: 9,945.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,670.58 : 31,006.04 = 6,630.63 : x
  2. Step 2: Convert to fraction form
    20,670.58/31,006.04 = 6,630.63/x
  3. Step 3: Cross multiply
    20,670.58x = 31,006.04 × 6,630.63
  4. Step 4: Simplify right side
    20,670.58x = 205,589,454.44
  5. Step 5: Solve for x
    x = 205,589,454.44/20,670.58
  6. Step 6: Final answer
    x = 9,945.99

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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.