Home / 22,261.63-30,719.87-12,188.14

Finding the Fourth Proportional to 22,261.63, 30,719.87 and 12,188.14

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Solution

The fourth proportional to 22,261.63, 30,719.87 and 12,188.14 is: 16,818.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,261.63 : 30,719.87 = 12,188.14 : x
  2. Step 2: Convert to fraction form
    22,261.63/30,719.87 = 12,188.14/x
  3. Step 3: Cross multiply
    22,261.63x = 30,719.87 × 12,188.14
  4. Step 4: Simplify right side
    22,261.63x = 374,418,076.34
  5. Step 5: Solve for x
    x = 374,418,076.34/22,261.63
  6. Step 6: Final answer
    x = 16,818.99

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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.