Home / 16,621.44-22,968-15,811.52

Finding the Fourth Proportional to 16,621.44, 22,968 and 15,811.52

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Solution

The fourth proportional to 16,621.44, 22,968 and 15,811.52 is: 21,848.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,621.44 : 22,968 = 15,811.52 : x
  2. Step 2: Convert to fraction form
    16,621.44/22,968 = 15,811.52/x
  3. Step 3: Cross multiply
    16,621.44x = 22,968 × 15,811.52
  4. Step 4: Simplify right side
    16,621.44x = 363,158,991.36
  5. Step 5: Solve for x
    x = 363,158,991.36/16,621.44
  6. Step 6: Final answer
    x = 21,848.83

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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.