Home / 42,728.87-64,080.96-16,427.36

Finding the Fourth Proportional to 42,728.87, 64,080.96 and 16,427.36

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Solution

The fourth proportional to 42,728.87, 64,080.96 and 16,427.36 is: 24,636.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,728.87 : 64,080.96 = 16,427.36 : x
  2. Step 2: Convert to fraction form
    42,728.87/64,080.96 = 16,427.36/x
  3. Step 3: Cross multiply
    42,728.87x = 64,080.96 × 16,427.36
  4. Step 4: Simplify right side
    42,728.87x = 1,052,681,097.67
  5. Step 5: Solve for x
    x = 1,052,681,097.67/42,728.87
  6. Step 6: Final answer
    x = 24,636.29

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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.