Home / 30,110.36-45,165.98-11,399.20

Finding the Fourth Proportional to 30,110.36, 45,165.98 and 11,399.20

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Solution

The fourth proportional to 30,110.36, 45,165.98 and 11,399.20 is: 17,098.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,110.36 : 45,165.98 = 11,399.20 : x
  2. Step 2: Convert to fraction form
    30,110.36/45,165.98 = 11,399.20/x
  3. Step 3: Cross multiply
    30,110.36x = 45,165.98 × 11,399.20
  4. Step 4: Simplify right side
    30,110.36x = 514,855,954.80
  5. Step 5: Solve for x
    x = 514,855,954.80/30,110.36
  6. Step 6: Final answer
    x = 17,098.97

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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.