Home / 38,519.36-53,161.60-21,752

Finding the Fourth Proportional to 38,519.36, 53,161.60 and 21,752

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Solution

The fourth proportional to 38,519.36, 53,161.60 and 21,752 is: 30,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,519.36 : 53,161.60 = 21,752 : x
  2. Step 2: Convert to fraction form
    38,519.36/53,161.60 = 21,752/x
  3. Step 3: Cross multiply
    38,519.36x = 53,161.60 × 21,752
  4. Step 4: Simplify right side
    38,519.36x = 1,156,371,123.20
  5. Step 5: Solve for x
    x = 1,156,371,123.20/38,519.36
  6. Step 6: Final answer
    x = 30,020.52

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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.