Home / 39,810.15-54,940.34-22,819.66

Finding the Fourth Proportional to 39,810.15, 54,940.34 and 22,819.66

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Solution

The fourth proportional to 39,810.15, 54,940.34 and 22,819.66 is: 31,492.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,810.15 : 54,940.34 = 22,819.66 : x
  2. Step 2: Convert to fraction form
    39,810.15/54,940.34 = 22,819.66/x
  3. Step 3: Cross multiply
    39,810.15x = 54,940.34 × 22,819.66
  4. Step 4: Simplify right side
    39,810.15x = 1,253,719,919.24
  5. Step 5: Solve for x
    x = 1,253,719,919.24/39,810.15
  6. Step 6: Final answer
    x = 31,492.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.