Home / 30,347.82-45,490.55-11,622.78

Finding the Fourth Proportional to 30,347.82, 45,490.55 and 11,622.78

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Solution

The fourth proportional to 30,347.82, 45,490.55 and 11,622.78 is: 17,422.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,347.82 : 45,490.55 = 11,622.78 : x
  2. Step 2: Convert to fraction form
    30,347.82/45,490.55 = 11,622.78/x
  3. Step 3: Cross multiply
    30,347.82x = 45,490.55 × 11,622.78
  4. Step 4: Simplify right side
    30,347.82x = 528,726,596.62
  5. Step 5: Solve for x
    x = 528,726,596.62/30,347.82
  6. Step 6: Final answer
    x = 17,422.23

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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.