Home / 22,750.08-31,394.64-12,679.20

Finding the Fourth Proportional to 22,750.08, 31,394.64 and 12,679.20

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Solution

The fourth proportional to 22,750.08, 31,394.64 and 12,679.20 is: 17,497.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,750.08 : 31,394.64 = 12,679.20 : x
  2. Step 2: Convert to fraction form
    22,750.08/31,394.64 = 12,679.20/x
  3. Step 3: Cross multiply
    22,750.08x = 31,394.64 × 12,679.20
  4. Step 4: Simplify right side
    22,750.08x = 398,058,919.49
  5. Step 5: Solve for x
    x = 398,058,919.49/22,750.08
  6. Step 6: Final answer
    x = 17,497.03

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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.