Home / 30,204.72-45,307.11-11,480.36

Finding the Fourth Proportional to 30,204.72, 45,307.11 and 11,480.36

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Solution

The fourth proportional to 30,204.72, 45,307.11 and 11,480.36 is: 17,220.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,204.72 : 45,307.11 = 11,480.36 : x
  2. Step 2: Convert to fraction form
    30,204.72/45,307.11 = 11,480.36/x
  3. Step 3: Cross multiply
    30,204.72x = 45,307.11 × 11,480.36
  4. Step 4: Simplify right side
    30,204.72x = 520,141,706.82
  5. Step 5: Solve for x
    x = 520,141,706.82/30,204.72
  6. Step 6: Final answer
    x = 17,220.54

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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.