Home / 20,298.63-30,450.41-7,148.31

Finding the Fourth Proportional to 20,298.63, 30,450.41 and 7,148.31

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Solution

The fourth proportional to 20,298.63, 30,450.41 and 7,148.31 is: 10,723.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,298.63 : 30,450.41 = 7,148.31 : x
  2. Step 2: Convert to fraction form
    20,298.63/30,450.41 = 7,148.31/x
  3. Step 3: Cross multiply
    20,298.63x = 30,450.41 × 7,148.31
  4. Step 4: Simplify right side
    20,298.63x = 217,668,934.57
  5. Step 5: Solve for x
    x = 217,668,934.57/20,298.63
  6. Step 6: Final answer
    x = 10,723.33

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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.