Home / 21,213.72-31,754.10-14,601.24

Finding the Fourth Proportional to 21,213.72, 31,754.10 and 14,601.24

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Solution

The fourth proportional to 21,213.72, 31,754.10 and 14,601.24 is: 21,856.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,213.72 : 31,754.10 = 14,601.24 : x
  2. Step 2: Convert to fraction form
    21,213.72/31,754.10 = 14,601.24/x
  3. Step 3: Cross multiply
    21,213.72x = 31,754.10 × 14,601.24
  4. Step 4: Simplify right side
    21,213.72x = 463,649,235.08
  5. Step 5: Solve for x
    x = 463,649,235.08/21,213.72
  6. Step 6: Final answer
    x = 21,856.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.