Home / 21,892.23-30,210.75-12,201.62

Finding the Fourth Proportional to 21,892.23, 30,210.75 and 12,201.62

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Solution

The fourth proportional to 21,892.23, 30,210.75 and 12,201.62 is: 16,837.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,892.23 : 30,210.75 = 12,201.62 : x
  2. Step 2: Convert to fraction form
    21,892.23/30,210.75 = 12,201.62/x
  3. Step 3: Cross multiply
    21,892.23x = 30,210.75 × 12,201.62
  4. Step 4: Simplify right side
    21,892.23x = 368,619,940.36
  5. Step 5: Solve for x
    x = 368,619,940.36/21,892.23
  6. Step 6: Final answer
    x = 16,837.93

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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.