Home / 20,302.28-30,453.36-7,153.16

Finding the Fourth Proportional to 20,302.28, 30,453.36 and 7,153.16

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Solution

The fourth proportional to 20,302.28, 30,453.36 and 7,153.16 is: 10,729.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,302.28 : 30,453.36 = 7,153.16 : x
  2. Step 2: Convert to fraction form
    20,302.28/30,453.36 = 7,153.16/x
  3. Step 3: Cross multiply
    20,302.28x = 30,453.36 × 7,153.16
  4. Step 4: Simplify right side
    20,302.28x = 217,837,756.62
  5. Step 5: Solve for x
    x = 217,837,756.62/20,302.28
  6. Step 6: Final answer
    x = 10,729.72

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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.