Home / 20,821.74-31,232.40-6,030.54

Finding the Fourth Proportional to 20,821.74, 31,232.40 and 6,030.54

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Solution

The fourth proportional to 20,821.74, 31,232.40 and 6,030.54 is: 9,045.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,821.74 : 31,232.40 = 6,030.54 : x
  2. Step 2: Convert to fraction form
    20,821.74/31,232.40 = 6,030.54/x
  3. Step 3: Cross multiply
    20,821.74x = 31,232.40 × 6,030.54
  4. Step 4: Simplify right side
    20,821.74x = 188,348,237.50
  5. Step 5: Solve for x
    x = 188,348,237.50/20,821.74
  6. Step 6: Final answer
    x = 9,045.75

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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.