Home / 22,749.49-31,393.31-12,679.03

Finding the Fourth Proportional to 22,749.49, 31,393.31 and 12,679.03

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Solution

The fourth proportional to 22,749.49, 31,393.31 and 12,679.03 is: 17,496.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,749.49 : 31,393.31 = 12,679.03 : x
  2. Step 2: Convert to fraction form
    22,749.49/31,393.31 = 12,679.03/x
  3. Step 3: Cross multiply
    22,749.49x = 31,393.31 × 12,679.03
  4. Step 4: Simplify right side
    22,749.49x = 398,036,695.14
  5. Step 5: Solve for x
    x = 398,036,695.14/22,749.49
  6. Step 6: Final answer
    x = 17,496.51

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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.