Home / 21,309.44-29,406.08-14,234.88

Finding the Fourth Proportional to 21,309.44, 29,406.08 and 14,234.88

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Solution

The fourth proportional to 21,309.44, 29,406.08 and 14,234.88 is: 19,643.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309.44 : 29,406.08 = 14,234.88 : x
  2. Step 2: Convert to fraction form
    21,309.44/29,406.08 = 14,234.88/x
  3. Step 3: Cross multiply
    21,309.44x = 29,406.08 × 14,234.88
  4. Step 4: Simplify right side
    21,309.44x = 418,592,020.07
  5. Step 5: Solve for x
    x = 418,592,020.07/21,309.44
  6. Step 6: Final answer
    x = 19,643.50

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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.