Home / 20,865.74-31,298.66-6,075

Finding the Fourth Proportional to 20,865.74, 31,298.66 and 6,075

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Solution

The fourth proportional to 20,865.74, 31,298.66 and 6,075 is: 9,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,865.74 : 31,298.66 = 6,075 : x
  2. Step 2: Convert to fraction form
    20,865.74/31,298.66 = 6,075/x
  3. Step 3: Cross multiply
    20,865.74x = 31,298.66 × 6,075
  4. Step 4: Simplify right side
    20,865.74x = 190,139,359.50
  5. Step 5: Solve for x
    x = 190,139,359.50/20,865.74
  6. Step 6: Final answer
    x = 9,112.51

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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.