Home / 21,075.50-31,614.06-5,493.26

Finding the Fourth Proportional to 21,075.50, 31,614.06 and 5,493.26

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Solution

The fourth proportional to 21,075.50, 31,614.06 and 5,493.26 is: 8,240.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,075.50 : 31,614.06 = 5,493.26 : x
  2. Step 2: Convert to fraction form
    21,075.50/31,614.06 = 5,493.26/x
  3. Step 3: Cross multiply
    21,075.50x = 31,614.06 × 5,493.26
  4. Step 4: Simplify right side
    21,075.50x = 173,664,251.24
  5. Step 5: Solve for x
    x = 173,664,251.24/21,075.50
  6. Step 6: Final answer
    x = 8,240.10

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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.