Home / 28,326.78-42,490.26-7,550.28

Finding the Fourth Proportional to 28,326.78, 42,490.26 and 7,550.28

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Solution

The fourth proportional to 28,326.78, 42,490.26 and 7,550.28 is: 11,325.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,326.78 : 42,490.26 = 7,550.28 : x
  2. Step 2: Convert to fraction form
    28,326.78/42,490.26 = 7,550.28/x
  3. Step 3: Cross multiply
    28,326.78x = 42,490.26 × 7,550.28
  4. Step 4: Simplify right side
    28,326.78x = 320,813,360.27
  5. Step 5: Solve for x
    x = 320,813,360.27/28,326.78
  6. Step 6: Final answer
    x = 11,325.44

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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.