Home / 38,840.40-58,112.37-21,322.53

Finding the Fourth Proportional to 38,840.40, 58,112.37 and 21,322.53

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Solution

The fourth proportional to 38,840.40, 58,112.37 and 21,322.53 is: 31,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,840.40 : 58,112.37 = 21,322.53 : x
  2. Step 2: Convert to fraction form
    38,840.40/58,112.37 = 21,322.53/x
  3. Step 3: Cross multiply
    38,840.40x = 58,112.37 × 21,322.53
  4. Step 4: Simplify right side
    38,840.40x = 1,239,102,752.70
  5. Step 5: Solve for x
    x = 1,239,102,752.70/38,840.40
  6. Step 6: Final answer
    x = 31,902.42

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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.