Home / 38,679.64-58,015.50-12,403.24

Finding the Fourth Proportional to 38,679.64, 58,015.50 and 12,403.24

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Solution

The fourth proportional to 38,679.64, 58,015.50 and 12,403.24 is: 18,603.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,679.64 : 58,015.50 = 12,403.24 : x
  2. Step 2: Convert to fraction form
    38,679.64/58,015.50 = 12,403.24/x
  3. Step 3: Cross multiply
    38,679.64x = 58,015.50 × 12,403.24
  4. Step 4: Simplify right side
    38,679.64x = 719,580,170.22
  5. Step 5: Solve for x
    x = 719,580,170.22/38,679.64
  6. Step 6: Final answer
    x = 18,603.59

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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.