Home / 22,021.90-33,031.66-7,789.39

Finding the Fourth Proportional to 22,021.90, 33,031.66 and 7,789.39

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Solution

The fourth proportional to 22,021.90, 33,031.66 and 7,789.39 is: 11,683.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,021.90 : 33,031.66 = 7,789.39 : x
  2. Step 2: Convert to fraction form
    22,021.90/33,031.66 = 7,789.39/x
  3. Step 3: Cross multiply
    22,021.90x = 33,031.66 × 7,789.39
  4. Step 4: Simplify right side
    22,021.90x = 257,296,482.09
  5. Step 5: Solve for x
    x = 257,296,482.09/22,021.90
  6. Step 6: Final answer
    x = 11,683.66

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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.