Home / 22,662.79-31,274.10-13,231.35

Finding the Fourth Proportional to 22,662.79, 31,274.10 and 13,231.35

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Solution

The fourth proportional to 22,662.79, 31,274.10 and 13,231.35 is: 18,258.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,662.79 : 31,274.10 = 13,231.35 : x
  2. Step 2: Convert to fraction form
    22,662.79/31,274.10 = 13,231.35/x
  3. Step 3: Cross multiply
    22,662.79x = 31,274.10 × 13,231.35
  4. Step 4: Simplify right side
    22,662.79x = 413,798,563.04
  5. Step 5: Solve for x
    x = 413,798,563.04/22,662.79
  6. Step 6: Final answer
    x = 18,258.94

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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.