Home / 21,541.64-29,730.12-12,110

Finding the Fourth Proportional to 21,541.64, 29,730.12 and 12,110

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Solution

The fourth proportional to 21,541.64, 29,730.12 and 12,110 is: 16,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,541.64 : 29,730.12 = 12,110 : x
  2. Step 2: Convert to fraction form
    21,541.64/29,730.12 = 12,110/x
  3. Step 3: Cross multiply
    21,541.64x = 29,730.12 × 12,110
  4. Step 4: Simplify right side
    21,541.64x = 360,031,753.20
  5. Step 5: Solve for x
    x = 360,031,753.20/21,541.64
  6. Step 6: Final answer
    x = 16,713.29

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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.