Home / 22,392.64-30,902.58-12,321.81

Finding the Fourth Proportional to 22,392.64, 30,902.58 and 12,321.81

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Solution

The fourth proportional to 22,392.64, 30,902.58 and 12,321.81 is: 17,004.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,392.64 : 30,902.58 = 12,321.81 : x
  2. Step 2: Convert to fraction form
    22,392.64/30,902.58 = 12,321.81/x
  3. Step 3: Cross multiply
    22,392.64x = 30,902.58 × 12,321.81
  4. Step 4: Simplify right side
    22,392.64x = 380,775,719.27
  5. Step 5: Solve for x
    x = 380,775,719.27/22,392.64
  6. Step 6: Final answer
    x = 17,004.50

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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.