Home / 21,895.13-30,213.56-12,334.50

Finding the Fourth Proportional to 21,895.13, 30,213.56 and 12,334.50

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Solution

The fourth proportional to 21,895.13, 30,213.56 and 12,334.50 is: 17,020.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,895.13 : 30,213.56 = 12,334.50 : x
  2. Step 2: Convert to fraction form
    21,895.13/30,213.56 = 12,334.50/x
  3. Step 3: Cross multiply
    21,895.13x = 30,213.56 × 12,334.50
  4. Step 4: Simplify right side
    21,895.13x = 372,669,186.66
  5. Step 5: Solve for x
    x = 372,669,186.66/21,895.13
  6. Step 6: Final answer
    x = 17,020.64

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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.