Home / 39,711.66-54,802.98-21,806.74

Finding the Fourth Proportional to 39,711.66, 54,802.98 and 21,806.74

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Solution

The fourth proportional to 39,711.66, 54,802.98 and 21,806.74 is: 30,093.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,711.66 : 54,802.98 = 21,806.74 : x
  2. Step 2: Convert to fraction form
    39,711.66/54,802.98 = 21,806.74/x
  3. Step 3: Cross multiply
    39,711.66x = 54,802.98 × 21,806.74
  4. Step 4: Simplify right side
    39,711.66x = 1,195,074,336.09
  5. Step 5: Solve for x
    x = 1,195,074,336.09/39,711.66
  6. Step 6: Final answer
    x = 30,093.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.