Home / 39,156.92-54,039.22-22,161.18

Finding the Fourth Proportional to 39,156.92, 54,039.22 and 22,161.18

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Solution

The fourth proportional to 39,156.92, 54,039.22 and 22,161.18 is: 30,583.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156.92 : 54,039.22 = 22,161.18 : x
  2. Step 2: Convert to fraction form
    39,156.92/54,039.22 = 22,161.18/x
  3. Step 3: Cross multiply
    39,156.92x = 54,039.22 × 22,161.18
  4. Step 4: Simplify right side
    39,156.92x = 1,197,572,881.48
  5. Step 5: Solve for x
    x = 1,197,572,881.48/39,156.92
  6. Step 6: Final answer
    x = 30,583.94

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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.