Home / 28,836.10-43,267.97-15,688.45

Finding the Fourth Proportional to 28,836.10, 43,267.97 and 15,688.45

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Solution

The fourth proportional to 28,836.10, 43,267.97 and 15,688.45 is: 23,540.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836.10 : 43,267.97 = 15,688.45 : x
  2. Step 2: Convert to fraction form
    28,836.10/43,267.97 = 15,688.45/x
  3. Step 3: Cross multiply
    28,836.10x = 43,267.97 × 15,688.45
  4. Step 4: Simplify right side
    28,836.10x = 678,807,383.95
  5. Step 5: Solve for x
    x = 678,807,383.95/28,836.10
  6. Step 6: Final answer
    x = 23,540.19

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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.