Home / 28,643.27-42,981.30-11,110.82

Finding the Fourth Proportional to 28,643.27, 42,981.30 and 11,110.82

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Solution

The fourth proportional to 28,643.27, 42,981.30 and 11,110.82 is: 16,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,643.27 : 42,981.30 = 11,110.82 : x
  2. Step 2: Convert to fraction form
    28,643.27/42,981.30 = 11,110.82/x
  3. Step 3: Cross multiply
    28,643.27x = 42,981.30 × 11,110.82
  4. Step 4: Simplify right side
    28,643.27x = 477,557,272.76
  5. Step 5: Solve for x
    x = 477,557,272.76/28,643.27
  6. Step 6: Final answer
    x = 16,672.59

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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.