Home / 22,664.34-31,276.80-13,231.08

Finding the Fourth Proportional to 22,664.34, 31,276.80 and 13,231.08

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Solution

The fourth proportional to 22,664.34, 31,276.80 and 13,231.08 is: 18,258.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,664.34 : 31,276.80 = 13,231.08 : x
  2. Step 2: Convert to fraction form
    22,664.34/31,276.80 = 13,231.08/x
  3. Step 3: Cross multiply
    22,664.34x = 31,276.80 × 13,231.08
  4. Step 4: Simplify right side
    22,664.34x = 413,825,842.94
  5. Step 5: Solve for x
    x = 413,825,842.94/22,664.34
  6. Step 6: Final answer
    x = 18,258.90

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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.