Home / 38,993.05-53,810.53-21,088.15

Finding the Fourth Proportional to 38,993.05, 53,810.53 and 21,088.15

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Solution

The fourth proportional to 38,993.05, 53,810.53 and 21,088.15 is: 29,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,993.05 : 53,810.53 = 21,088.15 : x
  2. Step 2: Convert to fraction form
    38,993.05/53,810.53 = 21,088.15/x
  3. Step 3: Cross multiply
    38,993.05x = 53,810.53 × 21,088.15
  4. Step 4: Simplify right side
    38,993.05x = 1,134,764,340.97
  5. Step 5: Solve for x
    x = 1,134,764,340.97/38,993.05
  6. Step 6: Final answer
    x = 29,101.71

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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.