Home / 23,490.12-32,416.20-12,879.84

Finding the Fourth Proportional to 23,490.12, 32,416.20 and 12,879.84

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Solution

The fourth proportional to 23,490.12, 32,416.20 and 12,879.84 is: 17,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,490.12 : 32,416.20 = 12,879.84 : x
  2. Step 2: Convert to fraction form
    23,490.12/32,416.20 = 12,879.84/x
  3. Step 3: Cross multiply
    23,490.12x = 32,416.20 × 12,879.84
  4. Step 4: Simplify right side
    23,490.12x = 417,515,469.41
  5. Step 5: Solve for x
    x = 417,515,469.41/23,490.12
  6. Step 6: Final answer
    x = 17,774.09

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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.