Home / 39,761.66-59,649.78-13,109.16

Finding the Fourth Proportional to 39,761.66, 59,649.78 and 13,109.16

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Solution

The fourth proportional to 39,761.66, 59,649.78 and 13,109.16 is: 19,666.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,761.66 : 59,649.78 = 13,109.16 : x
  2. Step 2: Convert to fraction form
    39,761.66/59,649.78 = 13,109.16/x
  3. Step 3: Cross multiply
    39,761.66x = 59,649.78 × 13,109.16
  4. Step 4: Simplify right side
    39,761.66x = 781,958,509.98
  5. Step 5: Solve for x
    x = 781,958,509.98/39,761.66
  6. Step 6: Final answer
    x = 19,666.14

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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.