Home / 30,114.78-45,171.77-9,338.28

Finding the Fourth Proportional to 30,114.78, 45,171.77 and 9,338.28

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Solution

The fourth proportional to 30,114.78, 45,171.77 and 9,338.28 is: 14,007.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,114.78 : 45,171.77 = 9,338.28 : x
  2. Step 2: Convert to fraction form
    30,114.78/45,171.77 = 9,338.28/x
  3. Step 3: Cross multiply
    30,114.78x = 45,171.77 × 9,338.28
  4. Step 4: Simplify right side
    30,114.78x = 421,826,589.66
  5. Step 5: Solve for x
    x = 421,826,589.66/30,114.78
  6. Step 6: Final answer
    x = 14,007.29

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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.