Home / 22,920.62-31,632.39-12,848.90

Finding the Fourth Proportional to 22,920.62, 31,632.39 and 12,848.90

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Solution

The fourth proportional to 22,920.62, 31,632.39 and 12,848.90 is: 17,732.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,920.62 : 31,632.39 = 12,848.90 : x
  2. Step 2: Convert to fraction form
    22,920.62/31,632.39 = 12,848.90/x
  3. Step 3: Cross multiply
    22,920.62x = 31,632.39 × 12,848.90
  4. Step 4: Simplify right side
    22,920.62x = 406,441,415.87
  5. Step 5: Solve for x
    x = 406,441,415.87/22,920.62
  6. Step 6: Final answer
    x = 17,732.57

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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.