Home / 22,912.16-31,621.01-12,842.30

Finding the Fourth Proportional to 22,912.16, 31,621.01 and 12,842.30

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Solution

The fourth proportional to 22,912.16, 31,621.01 and 12,842.30 is: 17,723.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,912.16 : 31,621.01 = 12,842.30 : x
  2. Step 2: Convert to fraction form
    22,912.16/31,621.01 = 12,842.30/x
  3. Step 3: Cross multiply
    22,912.16x = 31,621.01 × 12,842.30
  4. Step 4: Simplify right side
    22,912.16x = 406,086,274.41
  5. Step 5: Solve for x
    x = 406,086,274.41/22,912.16
  6. Step 6: Final answer
    x = 17,723.62

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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.