Home / 20,867.63-31,293.24-7,711.00

Finding the Fourth Proportional to 20,867.63, 31,293.24 and 7,711.00

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Solution

The fourth proportional to 20,867.63, 31,293.24 and 7,711.00 is: 11,563.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,867.63 : 31,293.24 = 7,711.00 : x
  2. Step 2: Convert to fraction form
    20,867.63/31,293.24 = 7,711.00/x
  3. Step 3: Cross multiply
    20,867.63x = 31,293.24 × 7,711.00
  4. Step 4: Simplify right side
    20,867.63x = 241,302,066.49
  5. Step 5: Solve for x
    x = 241,302,066.49/20,867.63
  6. Step 6: Final answer
    x = 11,563.47

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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.