Home / 30,425.59-41,961.13-19,811.35

Finding the Fourth Proportional to 30,425.59, 41,961.13 and 19,811.35

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Solution

The fourth proportional to 30,425.59, 41,961.13 and 19,811.35 is: 27,322.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,425.59 : 41,961.13 = 19,811.35 : x
  2. Step 2: Convert to fraction form
    30,425.59/41,961.13 = 19,811.35/x
  3. Step 3: Cross multiply
    30,425.59x = 41,961.13 × 19,811.35
  4. Step 4: Simplify right side
    30,425.59x = 831,306,632.83
  5. Step 5: Solve for x
    x = 831,306,632.83/30,425.59
  6. Step 6: Final answer
    x = 27,322.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.