Home / 20,439.56-30,632.04-10,932.39

Finding the Fourth Proportional to 20,439.56, 30,632.04 and 10,932.39

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Solution

The fourth proportional to 20,439.56, 30,632.04 and 10,932.39 is: 16,383.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,439.56 : 30,632.04 = 10,932.39 : x
  2. Step 2: Convert to fraction form
    20,439.56/30,632.04 = 10,932.39/x
  3. Step 3: Cross multiply
    20,439.56x = 30,632.04 × 10,932.39
  4. Step 4: Simplify right side
    20,439.56x = 334,881,407.78
  5. Step 5: Solve for x
    x = 334,881,407.78/20,439.56
  6. Step 6: Final answer
    x = 16,383.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.