Home / 22,917.40-31,628.94-13,486.84

Finding the Fourth Proportional to 22,917.40, 31,628.94 and 13,486.84

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Solution

The fourth proportional to 22,917.40, 31,628.94 and 13,486.84 is: 18,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,917.40 : 31,628.94 = 13,486.84 : x
  2. Step 2: Convert to fraction form
    22,917.40/31,628.94 = 13,486.84/x
  3. Step 3: Cross multiply
    22,917.40x = 31,628.94 × 13,486.84
  4. Step 4: Simplify right side
    22,917.40x = 426,574,453.15
  5. Step 5: Solve for x
    x = 426,574,453.15/22,917.40
  6. Step 6: Final answer
    x = 18,613.56

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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.