Home / 22,981.21-31,714.19-12,910.07

Finding the Fourth Proportional to 22,981.21, 31,714.19 and 12,910.07

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Solution

The fourth proportional to 22,981.21, 31,714.19 and 12,910.07 is: 17,815.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,981.21 : 31,714.19 = 12,910.07 : x
  2. Step 2: Convert to fraction form
    22,981.21/31,714.19 = 12,910.07/x
  3. Step 3: Cross multiply
    22,981.21x = 31,714.19 × 12,910.07
  4. Step 4: Simplify right side
    22,981.21x = 409,432,524.45
  5. Step 5: Solve for x
    x = 409,432,524.45/22,981.21
  6. Step 6: Final answer
    x = 17,815.97

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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.