Home / 22,889.21-31,586.24-12,817.15

Finding the Fourth Proportional to 22,889.21, 31,586.24 and 12,817.15

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Solution

The fourth proportional to 22,889.21, 31,586.24 and 12,817.15 is: 17,687.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,889.21 : 31,586.24 = 12,817.15 : x
  2. Step 2: Convert to fraction form
    22,889.21/31,586.24 = 12,817.15/x
  3. Step 3: Cross multiply
    22,889.21x = 31,586.24 × 12,817.15
  4. Step 4: Simplify right side
    22,889.21x = 404,845,529.09
  5. Step 5: Solve for x
    x = 404,845,529.09/22,889.21
  6. Step 6: Final answer
    x = 17,687.18

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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.