Home / 47,345.72-71,018.57-19,281.04

Finding the Fourth Proportional to 47,345.72, 71,018.57 and 19,281.04

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Solution

The fourth proportional to 47,345.72, 71,018.57 and 19,281.04 is: 28,921.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,345.72 : 71,018.57 = 19,281.04 : x
  2. Step 2: Convert to fraction form
    47,345.72/71,018.57 = 19,281.04/x
  3. Step 3: Cross multiply
    47,345.72x = 71,018.57 × 19,281.04
  4. Step 4: Simplify right side
    47,345.72x = 1,369,311,759.57
  5. Step 5: Solve for x
    x = 1,369,311,759.57/47,345.72
  6. Step 6: Final answer
    x = 28,921.56

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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.