Home / 23,421.24-32,321.80-12,811.56

Finding the Fourth Proportional to 23,421.24, 32,321.80 and 12,811.56

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Solution

The fourth proportional to 23,421.24, 32,321.80 and 12,811.56 is: 17,680.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,421.24 : 32,321.80 = 12,811.56 : x
  2. Step 2: Convert to fraction form
    23,421.24/32,321.80 = 12,811.56/x
  3. Step 3: Cross multiply
    23,421.24x = 32,321.80 × 12,811.56
  4. Step 4: Simplify right side
    23,421.24x = 414,092,680.01
  5. Step 5: Solve for x
    x = 414,092,680.01/23,421.24
  6. Step 6: Final answer
    x = 17,680.22

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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.