Home / 30,258.68-41,727.66-20,187.53

Finding the Fourth Proportional to 30,258.68, 41,727.66 and 20,187.53

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Solution

The fourth proportional to 30,258.68, 41,727.66 and 20,187.53 is: 27,839.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,258.68 : 41,727.66 = 20,187.53 : x
  2. Step 2: Convert to fraction form
    30,258.68/41,727.66 = 20,187.53/x
  3. Step 3: Cross multiply
    30,258.68x = 41,727.66 × 20,187.53
  4. Step 4: Simplify right side
    30,258.68x = 842,378,388.08
  5. Step 5: Solve for x
    x = 842,378,388.08/30,258.68
  6. Step 6: Final answer
    x = 27,839.23

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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.