Home / 28,418.76-42,634.31-10,888.61

Finding the Fourth Proportional to 28,418.76, 42,634.31 and 10,888.61

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Solution

The fourth proportional to 28,418.76, 42,634.31 and 10,888.61 is: 16,335.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,418.76 : 42,634.31 = 10,888.61 : x
  2. Step 2: Convert to fraction form
    28,418.76/42,634.31 = 10,888.61/x
  3. Step 3: Cross multiply
    28,418.76x = 42,634.31 × 10,888.61
  4. Step 4: Simplify right side
    28,418.76x = 464,228,106.59
  5. Step 5: Solve for x
    x = 464,228,106.59/28,418.76
  6. Step 6: Final answer
    x = 16,335.27

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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.