Home / 38,847.29-53,607.71-21,851.87

Finding the Fourth Proportional to 38,847.29, 53,607.71 and 21,851.87

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Solution

The fourth proportional to 38,847.29, 53,607.71 and 21,851.87 is: 30,154.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,847.29 : 53,607.71 = 21,851.87 : x
  2. Step 2: Convert to fraction form
    38,847.29/53,607.71 = 21,851.87/x
  3. Step 3: Cross multiply
    38,847.29x = 53,607.71 × 21,851.87
  4. Step 4: Simplify right side
    38,847.29x = 1,171,428,600.66
  5. Step 5: Solve for x
    x = 1,171,428,600.66/38,847.29
  6. Step 6: Final answer
    x = 30,154.71

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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.