Home / 39,802.20-59,682.75-11,718.60

Finding the Fourth Proportional to 39,802.20, 59,682.75 and 11,718.60

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Solution

The fourth proportional to 39,802.20, 59,682.75 and 11,718.60 is: 17,571.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,802.20 : 59,682.75 = 11,718.60 : x
  2. Step 2: Convert to fraction form
    39,802.20/59,682.75 = 11,718.60/x
  3. Step 3: Cross multiply
    39,802.20x = 59,682.75 × 11,718.60
  4. Step 4: Simplify right side
    39,802.20x = 699,398,274.15
  5. Step 5: Solve for x
    x = 699,398,274.15/39,802.20
  6. Step 6: Final answer
    x = 17,571.85

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1.5x scale

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.