Home / 20,883.02-31,321.28-6,090.39

Finding the Fourth Proportional to 20,883.02, 31,321.28 and 6,090.39

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Solution

The fourth proportional to 20,883.02, 31,321.28 and 6,090.39 is: 9,134.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,883.02 : 31,321.28 = 6,090.39 : x
  2. Step 2: Convert to fraction form
    20,883.02/31,321.28 = 6,090.39/x
  3. Step 3: Cross multiply
    20,883.02x = 31,321.28 × 6,090.39
  4. Step 4: Simplify right side
    20,883.02x = 190,758,825.73
  5. Step 5: Solve for x
    x = 190,758,825.73/20,883.02
  6. Step 6: Final answer
    x = 9,134.64

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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.