Home / 22,420.66-33,623.10-6,621.47

Finding the Fourth Proportional to 22,420.66, 33,623.10 and 6,621.47

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Solution

The fourth proportional to 22,420.66, 33,623.10 and 6,621.47 is: 9,929.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,420.66 : 33,623.10 = 6,621.47 : x
  2. Step 2: Convert to fraction form
    22,420.66/33,623.10 = 6,621.47/x
  3. Step 3: Cross multiply
    22,420.66x = 33,623.10 × 6,621.47
  4. Step 4: Simplify right side
    22,420.66x = 222,634,347.96
  5. Step 5: Solve for x
    x = 222,634,347.96/22,420.66
  6. Step 6: Final answer
    x = 9,929.87

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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.