Home / 22,012.28-30,382.22-12,586.32

Finding the Fourth Proportional to 22,012.28, 30,382.22 and 12,586.32

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Solution

The fourth proportional to 22,012.28, 30,382.22 and 12,586.32 is: 17,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,012.28 : 30,382.22 = 12,586.32 : x
  2. Step 2: Convert to fraction form
    22,012.28/30,382.22 = 12,586.32/x
  3. Step 3: Cross multiply
    22,012.28x = 30,382.22 × 12,586.32
  4. Step 4: Simplify right side
    22,012.28x = 382,400,343.23
  5. Step 5: Solve for x
    x = 382,400,343.23/22,012.28
  6. Step 6: Final answer
    x = 17,372.14

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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.