Home / 22,187.61-30,621.89-14,122.06

Finding the Fourth Proportional to 22,187.61, 30,621.89 and 14,122.06

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Solution

The fourth proportional to 22,187.61, 30,621.89 and 14,122.06 is: 19,490.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,187.61 : 30,621.89 = 14,122.06 : x
  2. Step 2: Convert to fraction form
    22,187.61/30,621.89 = 14,122.06/x
  3. Step 3: Cross multiply
    22,187.61x = 30,621.89 × 14,122.06
  4. Step 4: Simplify right side
    22,187.61x = 432,444,126.64
  5. Step 5: Solve for x
    x = 432,444,126.64/22,187.61
  6. Step 6: Final answer
    x = 19,490.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.