Home / 39,156.66-54,035.74-21,251.68

Finding the Fourth Proportional to 39,156.66, 54,035.74 and 21,251.68

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Solution

The fourth proportional to 39,156.66, 54,035.74 and 21,251.68 is: 29,327.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,156.66 : 54,035.74 = 21,251.68 : x
  2. Step 2: Convert to fraction form
    39,156.66/54,035.74 = 21,251.68/x
  3. Step 3: Cross multiply
    39,156.66x = 54,035.74 × 21,251.68
  4. Step 4: Simplify right side
    39,156.66x = 1,148,350,255.04
  5. Step 5: Solve for x
    x = 1,148,350,255.04/39,156.66
  6. Step 6: Final answer
    x = 29,327.07

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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.