Home / 38,487.97-53,112.37-21,491.74

Finding the Fourth Proportional to 38,487.97, 53,112.37 and 21,491.74

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Solution

The fourth proportional to 38,487.97, 53,112.37 and 21,491.74 is: 29,658.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,487.97 : 53,112.37 = 21,491.74 : x
  2. Step 2: Convert to fraction form
    38,487.97/53,112.37 = 21,491.74/x
  3. Step 3: Cross multiply
    38,487.97x = 53,112.37 × 21,491.74
  4. Step 4: Simplify right side
    38,487.97x = 1,141,477,404.69
  5. Step 5: Solve for x
    x = 1,141,477,404.69/38,487.97
  6. Step 6: Final answer
    x = 29,658.03

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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.