Home / 38,622.18-57,951.90-21,091.50

Finding the Fourth Proportional to 38,622.18, 57,951.90 and 21,091.50

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Solution

The fourth proportional to 38,622.18, 57,951.90 and 21,091.50 is: 31,647.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,622.18 : 57,951.90 = 21,091.50 : x
  2. Step 2: Convert to fraction form
    38,622.18/57,951.90 = 21,091.50/x
  3. Step 3: Cross multiply
    38,622.18x = 57,951.90 × 21,091.50
  4. Step 4: Simplify right side
    38,622.18x = 1,222,292,498.85
  5. Step 5: Solve for x
    x = 1,222,292,498.85/38,622.18
  6. Step 6: Final answer
    x = 31,647.42

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1.5x scale

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.