Home / 20,821.35-31,236.12-6,030.39

Finding the Fourth Proportional to 20,821.35, 31,236.12 and 6,030.39

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Solution

The fourth proportional to 20,821.35, 31,236.12 and 6,030.39 is: 9,046.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821.35 : 31,236.12 = 6,030.39 : x
  2. Step 2: Convert to fraction form
    20,821.35/31,236.12 = 6,030.39/x
  3. Step 3: Cross multiply
    20,821.35x = 31,236.12 × 6,030.39
  4. Step 4: Simplify right side
    20,821.35x = 188,365,985.69
  5. Step 5: Solve for x
    x = 188,365,985.69/20,821.35
  6. Step 6: Final answer
    x = 9,046.77

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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.