Home / 20,299.28-28,012.23-11,346.35

Finding the Fourth Proportional to 20,299.28, 28,012.23 and 11,346.35

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Solution

The fourth proportional to 20,299.28, 28,012.23 and 11,346.35 is: 15,657.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,299.28 : 28,012.23 = 11,346.35 : x
  2. Step 2: Convert to fraction form
    20,299.28/28,012.23 = 11,346.35/x
  3. Step 3: Cross multiply
    20,299.28x = 28,012.23 × 11,346.35
  4. Step 4: Simplify right side
    20,299.28x = 317,836,425.80
  5. Step 5: Solve for x
    x = 317,836,425.80/20,299.28
  6. Step 6: Final answer
    x = 15,657.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.