Home / 18,764.88-28,152.30-5,617.32

Finding the Fourth Proportional to 18,764.88, 28,152.30 and 5,617.32

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Solution

The fourth proportional to 18,764.88, 28,152.30 and 5,617.32 is: 8,427.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,764.88 : 28,152.30 = 5,617.32 : x
  2. Step 2: Convert to fraction form
    18,764.88/28,152.30 = 5,617.32/x
  3. Step 3: Cross multiply
    18,764.88x = 28,152.30 × 5,617.32
  4. Step 4: Simplify right side
    18,764.88x = 158,140,477.84
  5. Step 5: Solve for x
    x = 158,140,477.84/18,764.88
  6. Step 6: Final answer
    x = 8,427.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.