Home / 23,520.15-32,457.78-12,909.87

Finding the Fourth Proportional to 23,520.15, 32,457.78 and 12,909.87

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Solution

The fourth proportional to 23,520.15, 32,457.78 and 12,909.87 is: 17,815.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,520.15 : 32,457.78 = 12,909.87 : x
  2. Step 2: Convert to fraction form
    23,520.15/32,457.78 = 12,909.87/x
  3. Step 3: Cross multiply
    23,520.15x = 32,457.78 × 12,909.87
  4. Step 4: Simplify right side
    23,520.15x = 419,025,720.29
  5. Step 5: Solve for x
    x = 419,025,720.29/23,520.15
  6. Step 6: Final answer
    x = 17,815.61

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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.