Home / 22,643.55-31,246.16-13,212.72

Finding the Fourth Proportional to 22,643.55, 31,246.16 and 13,212.72

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Solution

The fourth proportional to 22,643.55, 31,246.16 and 13,212.72 is: 18,232.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,643.55 : 31,246.16 = 13,212.72 : x
  2. Step 2: Convert to fraction form
    22,643.55/31,246.16 = 13,212.72/x
  3. Step 3: Cross multiply
    22,643.55x = 31,246.16 × 13,212.72
  4. Step 4: Simplify right side
    22,643.55x = 412,846,697.09
  5. Step 5: Solve for x
    x = 412,846,697.09/22,643.55
  6. Step 6: Final answer
    x = 18,232.42

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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.