Home / 47,603.10-71,429.10-20,967.75

Finding the Fourth Proportional to 47,603.10, 71,429.10 and 20,967.75

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Solution

The fourth proportional to 47,603.10, 71,429.10 and 20,967.75 is: 31,462.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,603.10 : 71,429.10 = 20,967.75 : x
  2. Step 2: Convert to fraction form
    47,603.10/71,429.10 = 20,967.75/x
  3. Step 3: Cross multiply
    47,603.10x = 71,429.10 × 20,967.75
  4. Step 4: Simplify right side
    47,603.10x = 1,497,707,511.53
  5. Step 5: Solve for x
    x = 1,497,707,511.53/47,603.10
  6. Step 6: Final answer
    x = 31,462.39

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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.