Home / 20,148.65-30,225.25-5,358.15

Finding the Fourth Proportional to 20,148.65, 30,225.25 and 5,358.15

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Solution

The fourth proportional to 20,148.65, 30,225.25 and 5,358.15 is: 8,037.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148.65 : 30,225.25 = 5,358.15 : x
  2. Step 2: Convert to fraction form
    20,148.65/30,225.25 = 5,358.15/x
  3. Step 3: Cross multiply
    20,148.65x = 30,225.25 × 5,358.15
  4. Step 4: Simplify right side
    20,148.65x = 161,951,429.99
  5. Step 5: Solve for x
    x = 161,951,429.99/20,148.65
  6. Step 6: Final answer
    x = 8,037.83

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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.