Home / 28,998.13-40,016.77-16,897.87

Finding the Fourth Proportional to 28,998.13, 40,016.77 and 16,897.87

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Solution

The fourth proportional to 28,998.13, 40,016.77 and 16,897.87 is: 23,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,998.13 : 40,016.77 = 16,897.87 : x
  2. Step 2: Convert to fraction form
    28,998.13/40,016.77 = 16,897.87/x
  3. Step 3: Cross multiply
    28,998.13x = 40,016.77 × 16,897.87
  4. Step 4: Simplify right side
    28,998.13x = 676,197,959.96
  5. Step 5: Solve for x
    x = 676,197,959.96/28,998.13
  6. Step 6: Final answer
    x = 23,318.68

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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.