Home / 22,343.72-30,836.94-12,912.08

Finding the Fourth Proportional to 22,343.72, 30,836.94 and 12,912.08

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Solution

The fourth proportional to 22,343.72, 30,836.94 and 12,912.08 is: 17,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,343.72 : 30,836.94 = 12,912.08 : x
  2. Step 2: Convert to fraction form
    22,343.72/30,836.94 = 12,912.08/x
  3. Step 3: Cross multiply
    22,343.72x = 30,836.94 × 12,912.08
  4. Step 4: Simplify right side
    22,343.72x = 398,169,036.24
  5. Step 5: Solve for x
    x = 398,169,036.24/22,343.72
  6. Step 6: Final answer
    x = 17,820.18

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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.