Home / 20,628.28-30,925.62-10,234.36

Finding the Fourth Proportional to 20,628.28, 30,925.62 and 10,234.36

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Solution

The fourth proportional to 20,628.28, 30,925.62 and 10,234.36 is: 15,343.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,628.28 : 30,925.62 = 10,234.36 : x
  2. Step 2: Convert to fraction form
    20,628.28/30,925.62 = 10,234.36/x
  3. Step 3: Cross multiply
    20,628.28x = 30,925.62 × 10,234.36
  4. Step 4: Simplify right side
    20,628.28x = 316,503,928.30
  5. Step 5: Solve for x
    x = 316,503,928.30/20,628.28
  6. Step 6: Final answer
    x = 15,343.20

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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.