Home / 22,765.23-31,415.89-12,693.80

Finding the Fourth Proportional to 22,765.23, 31,415.89 and 12,693.80

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Solution

The fourth proportional to 22,765.23, 31,415.89 and 12,693.80 is: 17,517.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,765.23 : 31,415.89 = 12,693.80 : x
  2. Step 2: Convert to fraction form
    22,765.23/31,415.89 = 12,693.80/x
  3. Step 3: Cross multiply
    22,765.23x = 31,415.89 × 12,693.80
  4. Step 4: Simplify right side
    22,765.23x = 398,786,867.40
  5. Step 5: Solve for x
    x = 398,786,867.40/22,765.23
  6. Step 6: Final answer
    x = 17,517.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.