Home / 39,378.84-54,340.74-22,380.81

Finding the Fourth Proportional to 39,378.84, 54,340.74 and 22,380.81

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Solution

The fourth proportional to 39,378.84, 54,340.74 and 22,380.81 is: 30,884.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,378.84 : 54,340.74 = 22,380.81 : x
  2. Step 2: Convert to fraction form
    39,378.84/54,340.74 = 22,380.81/x
  3. Step 3: Cross multiply
    39,378.84x = 54,340.74 × 22,380.81
  4. Step 4: Simplify right side
    39,378.84x = 1,216,189,777.20
  5. Step 5: Solve for x
    x = 1,216,189,777.20/39,378.84
  6. Step 6: Final answer
    x = 30,884.35

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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.