Home / 22,455.78-30,988.41-12,383.91

Finding the Fourth Proportional to 22,455.78, 30,988.41 and 12,383.91

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Solution

The fourth proportional to 22,455.78, 30,988.41 and 12,383.91 is: 17,089.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,455.78 : 30,988.41 = 12,383.91 : x
  2. Step 2: Convert to fraction form
    22,455.78/30,988.41 = 12,383.91/x
  3. Step 3: Cross multiply
    22,455.78x = 30,988.41 × 12,383.91
  4. Step 4: Simplify right side
    22,455.78x = 383,757,680.48
  5. Step 5: Solve for x
    x = 383,757,680.48/22,455.78
  6. Step 6: Final answer
    x = 17,089.48

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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.