Home / 22,944.04-31,662.78-13,390.49

Finding the Fourth Proportional to 22,944.04, 31,662.78 and 13,390.49

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Solution

The fourth proportional to 22,944.04, 31,662.78 and 13,390.49 is: 18,478.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,944.04 : 31,662.78 = 13,390.49 : x
  2. Step 2: Convert to fraction form
    22,944.04/31,662.78 = 13,390.49/x
  3. Step 3: Cross multiply
    22,944.04x = 31,662.78 × 13,390.49
  4. Step 4: Simplify right side
    22,944.04x = 423,980,138.96
  5. Step 5: Solve for x
    x = 423,980,138.96/22,944.04
  6. Step 6: Final answer
    x = 18,478.88

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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.