Home / 34,451.20-51,627.60-19,628.80

Finding the Fourth Proportional to 34,451.20, 51,627.60 and 19,628.80

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Solution

The fourth proportional to 34,451.20, 51,627.60 and 19,628.80 is: 29,415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,451.20 : 51,627.60 = 19,628.80 : x
  2. Step 2: Convert to fraction form
    34,451.20/51,627.60 = 19,628.80/x
  3. Step 3: Cross multiply
    34,451.20x = 51,627.60 × 19,628.80
  4. Step 4: Simplify right side
    34,451.20x = 1,013,387,834.88
  5. Step 5: Solve for x
    x = 1,013,387,834.88/34,451.20
  6. Step 6: Final answer
    x = 29,415.17

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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.