Home / 28,918.18-43,385.10-9,197.20

Finding the Fourth Proportional to 28,918.18, 43,385.10 and 9,197.20

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Solution

The fourth proportional to 28,918.18, 43,385.10 and 9,197.20 is: 13,798.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,918.18 : 43,385.10 = 9,197.20 : x
  2. Step 2: Convert to fraction form
    28,918.18/43,385.10 = 9,197.20/x
  3. Step 3: Cross multiply
    28,918.18x = 43,385.10 × 9,197.20
  4. Step 4: Simplify right side
    28,918.18x = 399,021,441.72
  5. Step 5: Solve for x
    x = 399,021,441.72/28,918.18
  6. Step 6: Final answer
    x = 13,798.29

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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.