Home / 21,223.05-31,848.39-8,075.54

Finding the Fourth Proportional to 21,223.05, 31,848.39 and 8,075.54

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Solution

The fourth proportional to 21,223.05, 31,848.39 and 8,075.54 is: 12,118.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,223.05 : 31,848.39 = 8,075.54 : x
  2. Step 2: Convert to fraction form
    21,223.05/31,848.39 = 8,075.54/x
  3. Step 3: Cross multiply
    21,223.05x = 31,848.39 × 8,075.54
  4. Step 4: Simplify right side
    21,223.05x = 257,192,788.14
  5. Step 5: Solve for x
    x = 257,192,788.14/21,223.05
  6. Step 6: Final answer
    x = 12,118.56

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1.5x scale

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.