Home / 23,742.40-32,764.80-13,131.76

Finding the Fourth Proportional to 23,742.40, 32,764.80 and 13,131.76

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Solution

The fourth proportional to 23,742.40, 32,764.80 and 13,131.76 is: 18,121.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,742.40 : 32,764.80 = 13,131.76 : x
  2. Step 2: Convert to fraction form
    23,742.40/32,764.80 = 13,131.76/x
  3. Step 3: Cross multiply
    23,742.40x = 32,764.80 × 13,131.76
  4. Step 4: Simplify right side
    23,742.40x = 430,259,490.05
  5. Step 5: Solve for x
    x = 430,259,490.05/23,742.40
  6. Step 6: Final answer
    x = 18,121.99

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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.