Home / 22,844.78-31,529.70-13,290.22

Finding the Fourth Proportional to 22,844.78, 31,529.70 and 13,290.22

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Solution

The fourth proportional to 22,844.78, 31,529.70 and 13,290.22 is: 18,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,844.78 : 31,529.70 = 13,290.22 : x
  2. Step 2: Convert to fraction form
    22,844.78/31,529.70 = 13,290.22/x
  3. Step 3: Cross multiply
    22,844.78x = 31,529.70 × 13,290.22
  4. Step 4: Simplify right side
    22,844.78x = 419,036,649.53
  5. Step 5: Solve for x
    x = 419,036,649.53/22,844.78
  6. Step 6: Final answer
    x = 18,342.77

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1.5x scale

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.