Home / 38,785.54-53,524.38-21,790.12

Finding the Fourth Proportional to 38,785.54, 53,524.38 and 21,790.12

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Solution

The fourth proportional to 38,785.54, 53,524.38 and 21,790.12 is: 30,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.54 : 53,524.38 = 21,790.12 : x
  2. Step 2: Convert to fraction form
    38,785.54/53,524.38 = 21,790.12/x
  3. Step 3: Cross multiply
    38,785.54x = 53,524.38 × 21,790.12
  4. Step 4: Simplify right side
    38,785.54x = 1,166,302,663.13
  5. Step 5: Solve for x
    x = 1,166,302,663.13/38,785.54
  6. Step 6: Final answer
    x = 30,070.55

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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.