Home / 20,733.02-31,099.40-5,150.64

Finding the Fourth Proportional to 20,733.02, 31,099.40 and 5,150.64

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Solution

The fourth proportional to 20,733.02, 31,099.40 and 5,150.64 is: 7,725.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,733.02 : 31,099.40 = 5,150.64 : x
  2. Step 2: Convert to fraction form
    20,733.02/31,099.40 = 5,150.64/x
  3. Step 3: Cross multiply
    20,733.02x = 31,099.40 × 5,150.64
  4. Step 4: Simplify right side
    20,733.02x = 160,181,813.62
  5. Step 5: Solve for x
    x = 160,181,813.62/20,733.02
  6. Step 6: Final answer
    x = 7,725.93

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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.