Home / 22,764.80-31,415.08-12,693.64

Finding the Fourth Proportional to 22,764.80, 31,415.08 and 12,693.64

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Solution

The fourth proportional to 22,764.80, 31,415.08 and 12,693.64 is: 17,517.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,764.80 : 31,415.08 = 12,693.64 : x
  2. Step 2: Convert to fraction form
    22,764.80/31,415.08 = 12,693.64/x
  3. Step 3: Cross multiply
    22,764.80x = 31,415.08 × 12,693.64
  4. Step 4: Simplify right side
    22,764.80x = 398,771,716.09
  5. Step 5: Solve for x
    x = 398,771,716.09/22,764.80
  6. Step 6: Final answer
    x = 17,517.03

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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.