Home / 21,896.08-30,219-12,463.12

Finding the Fourth Proportional to 21,896.08, 30,219 and 12,463.12

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Solution

The fourth proportional to 21,896.08, 30,219 and 12,463.12 is: 17,200.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,896.08 : 30,219 = 12,463.12 : x
  2. Step 2: Convert to fraction form
    21,896.08/30,219 = 12,463.12/x
  3. Step 3: Cross multiply
    21,896.08x = 30,219 × 12,463.12
  4. Step 4: Simplify right side
    21,896.08x = 376,623,023.28
  5. Step 5: Solve for x
    x = 376,623,023.28/21,896.08
  6. Step 6: Final answer
    x = 17,200.48

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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.