Home / 30,456.06-45,677.78-11,729.66

Finding the Fourth Proportional to 30,456.06, 45,677.78 and 11,729.66

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Solution

The fourth proportional to 30,456.06, 45,677.78 and 11,729.66 is: 17,592.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,456.06 : 45,677.78 = 11,729.66 : x
  2. Step 2: Convert to fraction form
    30,456.06/45,677.78 = 11,729.66/x
  3. Step 3: Cross multiply
    30,456.06x = 45,677.78 × 11,729.66
  4. Step 4: Simplify right side
    30,456.06x = 535,784,828.95
  5. Step 5: Solve for x
    x = 535,784,828.95/30,456.06
  6. Step 6: Final answer
    x = 17,592.06

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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.