Home / 21,626.30-29,844.51-12,679.10

Finding the Fourth Proportional to 21,626.30, 29,844.51 and 12,679.10

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Solution

The fourth proportional to 21,626.30, 29,844.51 and 12,679.10 is: 17,497.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,626.30 : 29,844.51 = 12,679.10 : x
  2. Step 2: Convert to fraction form
    21,626.30/29,844.51 = 12,679.10/x
  3. Step 3: Cross multiply
    21,626.30x = 29,844.51 × 12,679.10
  4. Step 4: Simplify right side
    21,626.30x = 378,401,526.74
  5. Step 5: Solve for x
    x = 378,401,526.74/21,626.30
  6. Step 6: Final answer
    x = 17,497.28

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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.