Home / 38,001.45-52,440.57-21,005.49

Finding the Fourth Proportional to 38,001.45, 52,440.57 and 21,005.49

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Solution

The fourth proportional to 38,001.45, 52,440.57 and 21,005.49 is: 28,986.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,001.45 : 52,440.57 = 21,005.49 : x
  2. Step 2: Convert to fraction form
    38,001.45/52,440.57 = 21,005.49/x
  3. Step 3: Cross multiply
    38,001.45x = 52,440.57 × 21,005.49
  4. Step 4: Simplify right side
    38,001.45x = 1,101,539,868.73
  5. Step 5: Solve for x
    x = 1,101,539,868.73/38,001.45
  6. Step 6: Final answer
    x = 28,986.79

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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.