Home / 23,043.42-31,807.89-13,611.38

Finding the Fourth Proportional to 23,043.42, 31,807.89 and 13,611.38

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Solution

The fourth proportional to 23,043.42, 31,807.89 and 13,611.38 is: 18,788.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,043.42 : 31,807.89 = 13,611.38 : x
  2. Step 2: Convert to fraction form
    23,043.42/31,807.89 = 13,611.38/x
  3. Step 3: Cross multiply
    23,043.42x = 31,807.89 × 13,611.38
  4. Step 4: Simplify right side
    23,043.42x = 432,949,118.75
  5. Step 5: Solve for x
    x = 432,949,118.75/23,043.42
  6. Step 6: Final answer
    x = 18,788.41

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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.