Home / 39,181.03-58,720.21-18,118.40

Finding the Fourth Proportional to 39,181.03, 58,720.21 and 18,118.40

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Solution

The fourth proportional to 39,181.03, 58,720.21 and 18,118.40 is: 27,153.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,181.03 : 58,720.21 = 18,118.40 : x
  2. Step 2: Convert to fraction form
    39,181.03/58,720.21 = 18,118.40/x
  3. Step 3: Cross multiply
    39,181.03x = 58,720.21 × 18,118.40
  4. Step 4: Simplify right side
    39,181.03x = 1,063,916,252.86
  5. Step 5: Solve for x
    x = 1,063,916,252.86/39,181.03
  6. Step 6: Final answer
    x = 27,153.86

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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.