Home / 28,983.72-43,475.58-15,129.48

Finding the Fourth Proportional to 28,983.72, 43,475.58 and 15,129.48

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Solution

The fourth proportional to 28,983.72, 43,475.58 and 15,129.48 is: 22,694.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,983.72 : 43,475.58 = 15,129.48 : x
  2. Step 2: Convert to fraction form
    28,983.72/43,475.58 = 15,129.48/x
  3. Step 3: Cross multiply
    28,983.72x = 43,475.58 × 15,129.48
  4. Step 4: Simplify right side
    28,983.72x = 657,762,918.10
  5. Step 5: Solve for x
    x = 657,762,918.10/28,983.72
  6. Step 6: Final answer
    x = 22,694.22

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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.