Home / 20,055.96-30,090.42-8,372.52

Finding the Fourth Proportional to 20,055.96, 30,090.42 and 8,372.52

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Solution

The fourth proportional to 20,055.96, 30,090.42 and 8,372.52 is: 12,561.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,055.96 : 30,090.42 = 8,372.52 : x
  2. Step 2: Convert to fraction form
    20,055.96/30,090.42 = 8,372.52/x
  3. Step 3: Cross multiply
    20,055.96x = 30,090.42 × 8,372.52
  4. Step 4: Simplify right side
    20,055.96x = 251,932,643.26
  5. Step 5: Solve for x
    x = 251,932,643.26/20,055.96
  6. Step 6: Final answer
    x = 12,561.49

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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.