Home / 22,749.93-31,394.43-12,679.29

Finding the Fourth Proportional to 22,749.93, 31,394.43 and 12,679.29

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Solution

The fourth proportional to 22,749.93, 31,394.43 and 12,679.29 is: 17,497.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,749.93 : 31,394.43 = 12,679.29 : x
  2. Step 2: Convert to fraction form
    22,749.93/31,394.43 = 12,679.29/x
  3. Step 3: Cross multiply
    22,749.93x = 31,394.43 × 12,679.29
  4. Step 4: Simplify right side
    22,749.93x = 398,059,082.35
  5. Step 5: Solve for x
    x = 398,059,082.35/22,749.93
  6. Step 6: Final answer
    x = 17,497.16

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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.