Home / 21,029.02-31,544.16-5,446.70

Finding the Fourth Proportional to 21,029.02, 31,544.16 and 5,446.70

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Solution

The fourth proportional to 21,029.02, 31,544.16 and 5,446.70 is: 8,170.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,029.02 : 31,544.16 = 5,446.70 : x
  2. Step 2: Convert to fraction form
    21,029.02/31,544.16 = 5,446.70/x
  3. Step 3: Cross multiply
    21,029.02x = 31,544.16 × 5,446.70
  4. Step 4: Simplify right side
    21,029.02x = 171,811,576.27
  5. Step 5: Solve for x
    x = 171,811,576.27/21,029.02
  6. Step 6: Final answer
    x = 8,170.21

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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.