Home / 23,739.12-32,760.18-13,128.96

Finding the Fourth Proportional to 23,739.12, 32,760.18 and 13,128.96

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Solution

The fourth proportional to 23,739.12, 32,760.18 and 13,128.96 is: 18,118.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,739.12 : 32,760.18 = 13,128.96 : x
  2. Step 2: Convert to fraction form
    23,739.12/32,760.18 = 13,128.96/x
  3. Step 3: Cross multiply
    23,739.12x = 32,760.18 × 13,128.96
  4. Step 4: Simplify right side
    23,739.12x = 430,107,092.81
  5. Step 5: Solve for x
    x = 430,107,092.81/23,739.12
  6. Step 6: Final answer
    x = 18,118.07

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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.