Home / 38,427.19-57,649.30-11,776.86

Finding the Fourth Proportional to 38,427.19, 57,649.30 and 11,776.86

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Solution

The fourth proportional to 38,427.19, 57,649.30 and 11,776.86 is: 17,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,427.19 : 57,649.30 = 11,776.86 : x
  2. Step 2: Convert to fraction form
    38,427.19/57,649.30 = 11,776.86/x
  3. Step 3: Cross multiply
    38,427.19x = 57,649.30 × 11,776.86
  4. Step 4: Simplify right side
    38,427.19x = 678,927,705.76
  5. Step 5: Solve for x
    x = 678,927,705.76/38,427.19
  6. Step 6: Final answer
    x = 17,667.90

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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.