Home / 22,310.39-30,787.80-12,238.74

Finding the Fourth Proportional to 22,310.39, 30,787.80 and 12,238.74

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Solution

The fourth proportional to 22,310.39, 30,787.80 and 12,238.74 is: 16,889.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,310.39 : 30,787.80 = 12,238.74 : x
  2. Step 2: Convert to fraction form
    22,310.39/30,787.80 = 12,238.74/x
  3. Step 3: Cross multiply
    22,310.39x = 30,787.80 × 12,238.74
  4. Step 4: Simplify right side
    22,310.39x = 376,803,664.24
  5. Step 5: Solve for x
    x = 376,803,664.24/22,310.39
  6. Step 6: Final answer
    x = 16,889.16

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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.