Home / 28,634.28-42,957.66-11,767.40

Finding the Fourth Proportional to 28,634.28, 42,957.66 and 11,767.40

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Solution

The fourth proportional to 28,634.28, 42,957.66 and 11,767.40 is: 17,653.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,634.28 : 42,957.66 = 11,767.40 : x
  2. Step 2: Convert to fraction form
    28,634.28/42,957.66 = 11,767.40/x
  3. Step 3: Cross multiply
    28,634.28x = 42,957.66 × 11,767.40
  4. Step 4: Simplify right side
    28,634.28x = 505,499,753.50
  5. Step 5: Solve for x
    x = 505,499,753.50/28,634.28
  6. Step 6: Final answer
    x = 17,653.66

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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.