Home / 19,228.28-28,790.30-9,974.84

Finding the Fourth Proportional to 19,228.28, 28,790.30 and 9,974.84

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Solution

The fourth proportional to 19,228.28, 28,790.30 and 9,974.84 is: 14,935.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.28 : 28,790.30 = 9,974.84 : x
  2. Step 2: Convert to fraction form
    19,228.28/28,790.30 = 9,974.84/x
  3. Step 3: Cross multiply
    19,228.28x = 28,790.30 × 9,974.84
  4. Step 4: Simplify right side
    19,228.28x = 287,178,517.04
  5. Step 5: Solve for x
    x = 287,178,517.04/19,228.28
  6. Step 6: Final answer
    x = 14,935.22

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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.