Home / 28,157.18-38,845.85-18,084.22

Finding the Fourth Proportional to 28,157.18, 38,845.85 and 18,084.22

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Solution

The fourth proportional to 28,157.18, 38,845.85 and 18,084.22 is: 24,949.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,157.18 : 38,845.85 = 18,084.22 : x
  2. Step 2: Convert to fraction form
    28,157.18/38,845.85 = 18,084.22/x
  3. Step 3: Cross multiply
    28,157.18x = 38,845.85 × 18,084.22
  4. Step 4: Simplify right side
    28,157.18x = 702,496,897.49
  5. Step 5: Solve for x
    x = 702,496,897.49/28,157.18
  6. Step 6: Final answer
    x = 24,949.12

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1.5x scale

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.