Home / 31,438.36-43,368.20-23,872.12

Finding the Fourth Proportional to 31,438.36, 43,368.20 and 23,872.12

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Solution

The fourth proportional to 31,438.36, 43,368.20 and 23,872.12 is: 32,930.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,438.36 : 43,368.20 = 23,872.12 : x
  2. Step 2: Convert to fraction form
    31,438.36/43,368.20 = 23,872.12/x
  3. Step 3: Cross multiply
    31,438.36x = 43,368.20 × 23,872.12
  4. Step 4: Simplify right side
    31,438.36x = 1,035,290,874.58
  5. Step 5: Solve for x
    x = 1,035,290,874.58/31,438.36
  6. Step 6: Final answer
    x = 32,930.82

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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.