Home / 20,817.74-31,222.13-6,587.34

Finding the Fourth Proportional to 20,817.74, 31,222.13 and 6,587.34

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Solution

The fourth proportional to 20,817.74, 31,222.13 and 6,587.34 is: 9,879.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,817.74 : 31,222.13 = 6,587.34 : x
  2. Step 2: Convert to fraction form
    20,817.74/31,222.13 = 6,587.34/x
  3. Step 3: Cross multiply
    20,817.74x = 31,222.13 × 6,587.34
  4. Step 4: Simplify right side
    20,817.74x = 205,670,764.26
  5. Step 5: Solve for x
    x = 205,670,764.26/20,817.74
  6. Step 6: Final answer
    x = 9,879.59

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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.