Home / 20,100.69-30,152.48-5,309.46

Finding the Fourth Proportional to 20,100.69, 30,152.48 and 5,309.46

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Solution

The fourth proportional to 20,100.69, 30,152.48 and 5,309.46 is: 7,964.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.69 : 30,152.48 = 5,309.46 : x
  2. Step 2: Convert to fraction form
    20,100.69/30,152.48 = 5,309.46/x
  3. Step 3: Cross multiply
    20,100.69x = 30,152.48 × 5,309.46
  4. Step 4: Simplify right side
    20,100.69x = 160,093,359.91
  5. Step 5: Solve for x
    x = 160,093,359.91/20,100.69
  6. Step 6: Final answer
    x = 7,964.57

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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.