Home / 19,228.83-28,868.16-18,439.08

Finding the Fourth Proportional to 19,228.83, 28,868.16 and 18,439.08

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Solution

The fourth proportional to 19,228.83, 28,868.16 and 18,439.08 is: 27,682.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,228.83 : 28,868.16 = 18,439.08 : x
  2. Step 2: Convert to fraction form
    19,228.83/28,868.16 = 18,439.08/x
  3. Step 3: Cross multiply
    19,228.83x = 28,868.16 × 18,439.08
  4. Step 4: Simplify right side
    19,228.83x = 532,302,311.69
  5. Step 5: Solve for x
    x = 532,302,311.69/19,228.83
  6. Step 6: Final answer
    x = 27,682.51

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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.