Home / 21,237.54-31,856.28-7,197.60

Finding the Fourth Proportional to 21,237.54, 31,856.28 and 7,197.60

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Solution

The fourth proportional to 21,237.54, 31,856.28 and 7,197.60 is: 10,796.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,237.54 : 31,856.28 = 7,197.60 : x
  2. Step 2: Convert to fraction form
    21,237.54/31,856.28 = 7,197.60/x
  3. Step 3: Cross multiply
    21,237.54x = 31,856.28 × 7,197.60
  4. Step 4: Simplify right side
    21,237.54x = 229,288,760.93
  5. Step 5: Solve for x
    x = 229,288,760.93/21,237.54
  6. Step 6: Final answer
    x = 10,796.39

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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.