Home / 28,114.66-42,169.20-7,338.16

Finding the Fourth Proportional to 28,114.66, 42,169.20 and 7,338.16

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Solution

The fourth proportional to 28,114.66, 42,169.20 and 7,338.16 is: 11,006.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,114.66 : 42,169.20 = 7,338.16 : x
  2. Step 2: Convert to fraction form
    28,114.66/42,169.20 = 7,338.16/x
  3. Step 3: Cross multiply
    28,114.66x = 42,169.20 × 7,338.16
  4. Step 4: Simplify right side
    28,114.66x = 309,444,336.67
  5. Step 5: Solve for x
    x = 309,444,336.67/28,114.66
  6. Step 6: Final answer
    x = 11,006.51

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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.