Home / 22,964.58-31,688.55-12,890.97

Finding the Fourth Proportional to 22,964.58, 31,688.55 and 12,890.97

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Solution

The fourth proportional to 22,964.58, 31,688.55 and 12,890.97 is: 17,788.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,964.58 : 31,688.55 = 12,890.97 : x
  2. Step 2: Convert to fraction form
    22,964.58/31,688.55 = 12,890.97/x
  3. Step 3: Cross multiply
    22,964.58x = 31,688.55 × 12,890.97
  4. Step 4: Simplify right side
    22,964.58x = 408,496,147.39
  5. Step 5: Solve for x
    x = 408,496,147.39/22,964.58
  6. Step 6: Final answer
    x = 17,788.10

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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.