Home / 28,727.02-43,090.62-18,841.78

Finding the Fourth Proportional to 28,727.02, 43,090.62 and 18,841.78

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Solution

The fourth proportional to 28,727.02, 43,090.62 and 18,841.78 is: 28,262.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,727.02 : 43,090.62 = 18,841.78 : x
  2. Step 2: Convert to fraction form
    28,727.02/43,090.62 = 18,841.78/x
  3. Step 3: Cross multiply
    28,727.02x = 43,090.62 × 18,841.78
  4. Step 4: Simplify right side
    28,727.02x = 811,903,982.10
  5. Step 5: Solve for x
    x = 811,903,982.10/28,727.02
  6. Step 6: Final answer
    x = 28,262.73

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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.