Home / 20,342.14-30,532.90-9,819.54

Finding the Fourth Proportional to 20,342.14, 30,532.90 and 9,819.54

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Solution

The fourth proportional to 20,342.14, 30,532.90 and 9,819.54 is: 14,738.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,342.14 : 30,532.90 = 9,819.54 : x
  2. Step 2: Convert to fraction form
    20,342.14/30,532.90 = 9,819.54/x
  3. Step 3: Cross multiply
    20,342.14x = 30,532.90 × 9,819.54
  4. Step 4: Simplify right side
    20,342.14x = 299,819,133.75
  5. Step 5: Solve for x
    x = 299,819,133.75/20,342.14
  6. Step 6: Final answer
    x = 14,738.82

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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.