Home / 22,960.82-31,685.07-12,889.83

Finding the Fourth Proportional to 22,960.82, 31,685.07 and 12,889.83

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Solution

The fourth proportional to 22,960.82, 31,685.07 and 12,889.83 is: 17,787.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,960.82 : 31,685.07 = 12,889.83 : x
  2. Step 2: Convert to fraction form
    22,960.82/31,685.07 = 12,889.83/x
  3. Step 3: Cross multiply
    22,960.82x = 31,685.07 × 12,889.83
  4. Step 4: Simplify right side
    22,960.82x = 408,415,332.99
  5. Step 5: Solve for x
    x = 408,415,332.99/22,960.82
  6. Step 6: Final answer
    x = 17,787.49

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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.