Home / 20,452.71-30,688.49-9,362.80

Finding the Fourth Proportional to 20,452.71, 30,688.49 and 9,362.80

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Solution

The fourth proportional to 20,452.71, 30,688.49 and 9,362.80 is: 14,048.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,452.71 : 30,688.49 = 9,362.80 : x
  2. Step 2: Convert to fraction form
    20,452.71/30,688.49 = 9,362.80/x
  3. Step 3: Cross multiply
    20,452.71x = 30,688.49 × 9,362.80
  4. Step 4: Simplify right side
    20,452.71x = 287,330,194.17
  5. Step 5: Solve for x
    x = 287,330,194.17/20,452.71
  6. Step 6: Final answer
    x = 14,048.51

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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.