Home / 39,937.81-55,074.81-30,982.04

Finding the Fourth Proportional to 39,937.81, 55,074.81 and 30,982.04

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Solution

The fourth proportional to 39,937.81, 55,074.81 and 30,982.04 is: 42,724.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,937.81 : 55,074.81 = 30,982.04 : x
  2. Step 2: Convert to fraction form
    39,937.81/55,074.81 = 30,982.04/x
  3. Step 3: Cross multiply
    39,937.81x = 55,074.81 × 30,982.04
  4. Step 4: Simplify right side
    39,937.81x = 1,706,330,236.41
  5. Step 5: Solve for x
    x = 1,706,330,236.41/39,937.81
  6. Step 6: Final answer
    x = 42,724.68

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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.