Home / 21,359.44-31,976.07-15,775.70

Finding the Fourth Proportional to 21,359.44, 31,976.07 and 15,775.70

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Solution

The fourth proportional to 21,359.44, 31,976.07 and 15,775.70 is: 23,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,359.44 : 31,976.07 = 15,775.70 : x
  2. Step 2: Convert to fraction form
    21,359.44/31,976.07 = 15,775.70/x
  3. Step 3: Cross multiply
    21,359.44x = 31,976.07 × 15,775.70
  4. Step 4: Simplify right side
    21,359.44x = 504,444,887.50
  5. Step 5: Solve for x
    x = 504,444,887.50/21,359.44
  6. Step 6: Final answer
    x = 23,616.95

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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.