Home / 23,371.30-34,878.08-20,878.12

Finding the Fourth Proportional to 23,371.30, 34,878.08 and 20,878.12

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Solution

The fourth proportional to 23,371.30, 34,878.08 and 20,878.12 is: 31,157.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,371.30 : 34,878.08 = 20,878.12 : x
  2. Step 2: Convert to fraction form
    23,371.30/34,878.08 = 20,878.12/x
  3. Step 3: Cross multiply
    23,371.30x = 34,878.08 × 20,878.12
  4. Step 4: Simplify right side
    23,371.30x = 728,188,739.61
  5. Step 5: Solve for x
    x = 728,188,739.61/23,371.30
  6. Step 6: Final answer
    x = 31,157.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.