Home / 39,160.86-58,750.40-12,864

Finding the Fourth Proportional to 39,160.86, 58,750.40 and 12,864

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Solution

The fourth proportional to 39,160.86, 58,750.40 and 12,864 is: 19,298.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,160.86 : 58,750.40 = 12,864 : x
  2. Step 2: Convert to fraction form
    39,160.86/58,750.40 = 12,864/x
  3. Step 3: Cross multiply
    39,160.86x = 58,750.40 × 12,864
  4. Step 4: Simplify right side
    39,160.86x = 755,765,145.60
  5. Step 5: Solve for x
    x = 755,765,145.60/39,160.86
  6. Step 6: Final answer
    x = 19,298.99

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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.