Home / 28,133.88-42,184.83-11,474.40

Finding the Fourth Proportional to 28,133.88, 42,184.83 and 11,474.40

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Solution

The fourth proportional to 28,133.88, 42,184.83 and 11,474.40 is: 17,205.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,133.88 : 42,184.83 = 11,474.40 : x
  2. Step 2: Convert to fraction form
    28,133.88/42,184.83 = 11,474.40/x
  3. Step 3: Cross multiply
    28,133.88x = 42,184.83 × 11,474.40
  4. Step 4: Simplify right side
    28,133.88x = 484,045,613.35
  5. Step 5: Solve for x
    x = 484,045,613.35/28,133.88
  6. Step 6: Final answer
    x = 17,205.08

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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.