Home / 21,914.93-30,245.25-12,356.66

Finding the Fourth Proportional to 21,914.93, 30,245.25 and 12,356.66

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Solution

The fourth proportional to 21,914.93, 30,245.25 and 12,356.66 is: 17,053.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,914.93 : 30,245.25 = 12,356.66 : x
  2. Step 2: Convert to fraction form
    21,914.93/30,245.25 = 12,356.66/x
  3. Step 3: Cross multiply
    21,914.93x = 30,245.25 × 12,356.66
  4. Step 4: Simplify right side
    21,914.93x = 373,730,119.64
  5. Step 5: Solve for x
    x = 373,730,119.64/21,914.93
  6. Step 6: Final answer
    x = 17,053.68

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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.