Home / 20,973.09-31,470.57-8,502.33

Finding the Fourth Proportional to 20,973.09, 31,470.57 and 8,502.33

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Solution

The fourth proportional to 20,973.09, 31,470.57 and 8,502.33 is: 12,757.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,973.09 : 31,470.57 = 8,502.33 : x
  2. Step 2: Convert to fraction form
    20,973.09/31,470.57 = 8,502.33/x
  3. Step 3: Cross multiply
    20,973.09x = 31,470.57 × 8,502.33
  4. Step 4: Simplify right side
    20,973.09x = 267,573,171.43
  5. Step 5: Solve for x
    x = 267,573,171.43/20,973.09
  6. Step 6: Final answer
    x = 12,757.93

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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.