Home / 31,721.90-47,579.49-16,723.01

Finding the Fourth Proportional to 31,721.90, 47,579.49 and 16,723.01

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Solution

The fourth proportional to 31,721.90, 47,579.49 and 16,723.01 is: 25,082.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,721.90 : 47,579.49 = 16,723.01 : x
  2. Step 2: Convert to fraction form
    31,721.90/47,579.49 = 16,723.01/x
  3. Step 3: Cross multiply
    31,721.90x = 47,579.49 × 16,723.01
  4. Step 4: Simplify right side
    31,721.90x = 795,672,406.01
  5. Step 5: Solve for x
    x = 795,672,406.01/31,721.90
  6. Step 6: Final answer
    x = 25,082.75

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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.