Home / 21,391.14-32,078.52-7,348.56

Finding the Fourth Proportional to 21,391.14, 32,078.52 and 7,348.56

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Solution

The fourth proportional to 21,391.14, 32,078.52 and 7,348.56 is: 11,020.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,391.14 : 32,078.52 = 7,348.56 : x
  2. Step 2: Convert to fraction form
    21,391.14/32,078.52 = 7,348.56/x
  3. Step 3: Cross multiply
    21,391.14x = 32,078.52 × 7,348.56
  4. Step 4: Simplify right side
    21,391.14x = 235,730,928.93
  5. Step 5: Solve for x
    x = 235,730,928.93/21,391.14
  6. Step 6: Final answer
    x = 11,020.03

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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.