Home / 21,887.01-30,201.76-12,325.37

Finding the Fourth Proportional to 21,887.01, 30,201.76 and 12,325.37

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Solution

The fourth proportional to 21,887.01, 30,201.76 and 12,325.37 is: 17,007.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,887.01 : 30,201.76 = 12,325.37 : x
  2. Step 2: Convert to fraction form
    21,887.01/30,201.76 = 12,325.37/x
  3. Step 3: Cross multiply
    21,887.01x = 30,201.76 × 12,325.37
  4. Step 4: Simplify right side
    21,887.01x = 372,247,731.05
  5. Step 5: Solve for x
    x = 372,247,731.05/21,887.01
  6. Step 6: Final answer
    x = 17,007.70

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1.5x scale

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.