Home / 21,967.09-30,314.67-11,895.53

Finding the Fourth Proportional to 21,967.09, 30,314.67 and 11,895.53

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Solution

The fourth proportional to 21,967.09, 30,314.67 and 11,895.53 is: 16,415.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,967.09 : 30,314.67 = 11,895.53 : x
  2. Step 2: Convert to fraction form
    21,967.09/30,314.67 = 11,895.53/x
  3. Step 3: Cross multiply
    21,967.09x = 30,314.67 × 11,895.53
  4. Step 4: Simplify right side
    21,967.09x = 360,609,142.75
  5. Step 5: Solve for x
    x = 360,609,142.75/21,967.09
  6. Step 6: Final answer
    x = 16,415.88

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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.