Home / 20,681.55-31,037.97-15,149.27

Finding the Fourth Proportional to 20,681.55, 31,037.97 and 15,149.27

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Solution

The fourth proportional to 20,681.55, 31,037.97 and 15,149.27 is: 22,735.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,681.55 : 31,037.97 = 15,149.27 : x
  2. Step 2: Convert to fraction form
    20,681.55/31,037.97 = 15,149.27/x
  3. Step 3: Cross multiply
    20,681.55x = 31,037.97 × 15,149.27
  4. Step 4: Simplify right side
    20,681.55x = 470,202,722.19
  5. Step 5: Solve for x
    x = 470,202,722.19/20,681.55
  6. Step 6: Final answer
    x = 22,735.37

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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.