Home / 28,116.82-42,175.23-7,340.32

Finding the Fourth Proportional to 28,116.82, 42,175.23 and 7,340.32

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Solution

The fourth proportional to 28,116.82, 42,175.23 and 7,340.32 is: 11,010.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,116.82 : 42,175.23 = 7,340.32 : x
  2. Step 2: Convert to fraction form
    28,116.82/42,175.23 = 7,340.32/x
  3. Step 3: Cross multiply
    28,116.82x = 42,175.23 × 7,340.32
  4. Step 4: Simplify right side
    28,116.82x = 309,579,750.76
  5. Step 5: Solve for x
    x = 309,579,750.76/28,116.82
  6. Step 6: Final answer
    x = 11,010.48

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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.