Home / 20,680.74-31,025.73-7,533.11

Finding the Fourth Proportional to 20,680.74, 31,025.73 and 7,533.11

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Solution

The fourth proportional to 20,680.74, 31,025.73 and 7,533.11 is: 11,301.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,680.74 : 31,025.73 = 7,533.11 : x
  2. Step 2: Convert to fraction form
    20,680.74/31,025.73 = 7,533.11/x
  3. Step 3: Cross multiply
    20,680.74x = 31,025.73 × 7,533.11
  4. Step 4: Simplify right side
    20,680.74x = 233,720,236.92
  5. Step 5: Solve for x
    x = 233,720,236.92/20,680.74
  6. Step 6: Final answer
    x = 11,301.35

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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.