Home / 39,901.77-59,834.28-11,811.78

Finding the Fourth Proportional to 39,901.77, 59,834.28 and 11,811.78

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Solution

The fourth proportional to 39,901.77, 59,834.28 and 11,811.78 is: 17,712.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,901.77 : 59,834.28 = 11,811.78 : x
  2. Step 2: Convert to fraction form
    39,901.77/59,834.28 = 11,811.78/x
  3. Step 3: Cross multiply
    39,901.77x = 59,834.28 × 11,811.78
  4. Step 4: Simplify right side
    39,901.77x = 706,749,351.82
  5. Step 5: Solve for x
    x = 706,749,351.82/39,901.77
  6. Step 6: Final answer
    x = 17,712.23

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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.