Home / 20,302.74-30,453.42-7,154.76

Finding the Fourth Proportional to 20,302.74, 30,453.42 and 7,154.76

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Solution

The fourth proportional to 20,302.74, 30,453.42 and 7,154.76 is: 10,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.74 : 30,453.42 = 7,154.76 : x
  2. Step 2: Convert to fraction form
    20,302.74/30,453.42 = 7,154.76/x
  3. Step 3: Cross multiply
    20,302.74x = 30,453.42 × 7,154.76
  4. Step 4: Simplify right side
    20,302.74x = 217,886,911.28
  5. Step 5: Solve for x
    x = 217,886,911.28/20,302.74
  6. Step 6: Final answer
    x = 10,731.90

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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.