Home / 28,080.66-42,099.93-16,985.08

Finding the Fourth Proportional to 28,080.66, 42,099.93 and 16,985.08

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Solution

The fourth proportional to 28,080.66, 42,099.93 and 16,985.08 is: 25,464.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,080.66 : 42,099.93 = 16,985.08 : x
  2. Step 2: Convert to fraction form
    28,080.66/42,099.93 = 16,985.08/x
  3. Step 3: Cross multiply
    28,080.66x = 42,099.93 × 16,985.08
  4. Step 4: Simplify right side
    28,080.66x = 715,070,679.04
  5. Step 5: Solve for x
    x = 715,070,679.04/28,080.66
  6. Step 6: Final answer
    x = 25,464.88

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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.