Home / 38,785.33-53,523.97-21,790.29

Finding the Fourth Proportional to 38,785.33, 53,523.97 and 21,790.29

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Solution

The fourth proportional to 38,785.33, 53,523.97 and 21,790.29 is: 30,070.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,785.33 : 53,523.97 = 21,790.29 : x
  2. Step 2: Convert to fraction form
    38,785.33/53,523.97 = 21,790.29/x
  3. Step 3: Cross multiply
    38,785.33x = 53,523.97 × 21,790.29
  4. Step 4: Simplify right side
    38,785.33x = 1,166,302,828.25
  5. Step 5: Solve for x
    x = 1,166,302,828.25/38,785.33
  6. Step 6: Final answer
    x = 30,070.72

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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.