Home / 39,143.45-58,693.17-12,845.99

Finding the Fourth Proportional to 39,143.45, 58,693.17 and 12,845.99

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Solution

The fourth proportional to 39,143.45, 58,693.17 and 12,845.99 is: 19,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,143.45 : 58,693.17 = 12,845.99 : x
  2. Step 2: Convert to fraction form
    39,143.45/58,693.17 = 12,845.99/x
  3. Step 3: Cross multiply
    39,143.45x = 58,693.17 × 12,845.99
  4. Step 4: Simplify right side
    39,143.45x = 753,971,874.89
  5. Step 5: Solve for x
    x = 753,971,874.89/39,143.45
  6. Step 6: Final answer
    x = 19,261.76

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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.