Home / 30,015.29-45,016.09-11,297.30

Finding the Fourth Proportional to 30,015.29, 45,016.09 and 11,297.30

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Solution

The fourth proportional to 30,015.29, 45,016.09 and 11,297.30 is: 16,943.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,015.29 : 45,016.09 = 11,297.30 : x
  2. Step 2: Convert to fraction form
    30,015.29/45,016.09 = 11,297.30/x
  3. Step 3: Cross multiply
    30,015.29x = 45,016.09 × 11,297.30
  4. Step 4: Simplify right side
    30,015.29x = 508,560,020.23
  5. Step 5: Solve for x
    x = 508,560,020.23/30,015.29
  6. Step 6: Final answer
    x = 16,943.36

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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.