Home / 22,619.01-31,213.49-13,664.94

Finding the Fourth Proportional to 22,619.01, 31,213.49 and 13,664.94

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Solution

The fourth proportional to 22,619.01, 31,213.49 and 13,664.94 is: 18,857.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,619.01 : 31,213.49 = 13,664.94 : x
  2. Step 2: Convert to fraction form
    22,619.01/31,213.49 = 13,664.94/x
  3. Step 3: Cross multiply
    22,619.01x = 31,213.49 × 13,664.94
  4. Step 4: Simplify right side
    22,619.01x = 426,530,282.67
  5. Step 5: Solve for x
    x = 426,530,282.67/22,619.01
  6. Step 6: Final answer
    x = 18,857.16

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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.