Home / 30,948.14-46,422.20-8,761.70

Finding the Fourth Proportional to 30,948.14, 46,422.20 and 8,761.70

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Solution

The fourth proportional to 30,948.14, 46,422.20 and 8,761.70 is: 13,142.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,948.14 : 46,422.20 = 8,761.70 : x
  2. Step 2: Convert to fraction form
    30,948.14/46,422.20 = 8,761.70/x
  3. Step 3: Cross multiply
    30,948.14x = 46,422.20 × 8,761.70
  4. Step 4: Simplify right side
    30,948.14x = 406,737,113.82
  5. Step 5: Solve for x
    x = 406,737,113.82/30,948.14
  6. Step 6: Final answer
    x = 13,142.54

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1.5x scale

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.