Home / 28,166.16-38,887.40-18,099

Finding the Fourth Proportional to 28,166.16, 38,887.40 and 18,099

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Solution

The fourth proportional to 28,166.16, 38,887.40 and 18,099 is: 24,988.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,166.16 : 38,887.40 = 18,099 : x
  2. Step 2: Convert to fraction form
    28,166.16/38,887.40 = 18,099/x
  3. Step 3: Cross multiply
    28,166.16x = 38,887.40 × 18,099
  4. Step 4: Simplify right side
    28,166.16x = 703,823,052.60
  5. Step 5: Solve for x
    x = 703,823,052.60/28,166.16
  6. Step 6: Final answer
    x = 24,988.25

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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.