Home / 38,287.87-57,431.76-11,994.66

Finding the Fourth Proportional to 38,287.87, 57,431.76 and 11,994.66

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Solution

The fourth proportional to 38,287.87, 57,431.76 and 11,994.66 is: 17,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,287.87 : 57,431.76 = 11,994.66 : x
  2. Step 2: Convert to fraction form
    38,287.87/57,431.76 = 11,994.66/x
  3. Step 3: Cross multiply
    38,287.87x = 57,431.76 × 11,994.66
  4. Step 4: Simplify right side
    38,287.87x = 688,874,434.40
  5. Step 5: Solve for x
    x = 688,874,434.40/38,287.87
  6. Step 6: Final answer
    x = 17,991.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.