Home / 42,630.70-63,945.95-11,465.98

Finding the Fourth Proportional to 42,630.70, 63,945.95 and 11,465.98

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Solution

The fourth proportional to 42,630.70, 63,945.95 and 11,465.98 is: 17,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,630.70 : 63,945.95 = 11,465.98 : x
  2. Step 2: Convert to fraction form
    42,630.70/63,945.95 = 11,465.98/x
  3. Step 3: Cross multiply
    42,630.70x = 63,945.95 × 11,465.98
  4. Step 4: Simplify right side
    42,630.70x = 733,202,983.78
  5. Step 5: Solve for x
    x = 733,202,983.78/42,630.70
  6. Step 6: Final answer
    x = 17,198.94

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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.