Home / 21,927.39-30,251.93-12,490.49

Finding the Fourth Proportional to 21,927.39, 30,251.93 and 12,490.49

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Solution

The fourth proportional to 21,927.39, 30,251.93 and 12,490.49 is: 17,232.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,927.39 : 30,251.93 = 12,490.49 : x
  2. Step 2: Convert to fraction form
    21,927.39/30,251.93 = 12,490.49/x
  3. Step 3: Cross multiply
    21,927.39x = 30,251.93 × 12,490.49
  4. Step 4: Simplify right side
    21,927.39x = 377,861,215.43
  5. Step 5: Solve for x
    x = 377,861,215.43/21,927.39
  6. Step 6: Final answer
    x = 17,232.38

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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.