Home / 38,974.74-53,785.17-21,069.75

Finding the Fourth Proportional to 38,974.74, 53,785.17 and 21,069.75

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Solution

The fourth proportional to 38,974.74, 53,785.17 and 21,069.75 is: 29,076.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,974.74 : 53,785.17 = 21,069.75 : x
  2. Step 2: Convert to fraction form
    38,974.74/53,785.17 = 21,069.75/x
  3. Step 3: Cross multiply
    38,974.74x = 53,785.17 × 21,069.75
  4. Step 4: Simplify right side
    38,974.74x = 1,133,240,085.61
  5. Step 5: Solve for x
    x = 1,133,240,085.61/38,974.74
  6. Step 6: Final answer
    x = 29,076.27

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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.