Home / 38,284.86-57,427.30-11,991.66

Finding the Fourth Proportional to 38,284.86, 57,427.30 and 11,991.66

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Solution

The fourth proportional to 38,284.86, 57,427.30 and 11,991.66 is: 17,987.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,284.86 : 57,427.30 = 11,991.66 : x
  2. Step 2: Convert to fraction form
    38,284.86/57,427.30 = 11,991.66/x
  3. Step 3: Cross multiply
    38,284.86x = 57,427.30 × 11,991.66
  4. Step 4: Simplify right side
    38,284.86x = 688,648,455.96
  5. Step 5: Solve for x
    x = 688,648,455.96/38,284.86
  6. Step 6: Final answer
    x = 17,987.49

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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.