Home / 23,634.20-32,628.80-15,687.20

Finding the Fourth Proportional to 23,634.20, 32,628.80 and 15,687.20

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Solution

The fourth proportional to 23,634.20, 32,628.80 and 15,687.20 is: 21,657.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,634.20 : 32,628.80 = 15,687.20 : x
  2. Step 2: Convert to fraction form
    23,634.20/32,628.80 = 15,687.20/x
  3. Step 3: Cross multiply
    23,634.20x = 32,628.80 × 15,687.20
  4. Step 4: Simplify right side
    23,634.20x = 511,854,511.36
  5. Step 5: Solve for x
    x = 511,854,511.36/23,634.20
  6. Step 6: Final answer
    x = 21,657.37

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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.