Home / 22,436.20-30,964.26-13,486.60

Finding the Fourth Proportional to 22,436.20, 30,964.26 and 13,486.60

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Solution

The fourth proportional to 22,436.20, 30,964.26 and 13,486.60 is: 18,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,436.20 : 30,964.26 = 13,486.60 : x
  2. Step 2: Convert to fraction form
    22,436.20/30,964.26 = 13,486.60/x
  3. Step 3: Cross multiply
    22,436.20x = 30,964.26 × 13,486.60
  4. Step 4: Simplify right side
    22,436.20x = 417,602,588.92
  5. Step 5: Solve for x
    x = 417,602,588.92/22,436.20
  6. Step 6: Final answer
    x = 18,612.89

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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.