Home / 20,100.12-27,739.26-13,032.60

Finding the Fourth Proportional to 20,100.12, 27,739.26 and 13,032.60

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Solution

The fourth proportional to 20,100.12, 27,739.26 and 13,032.60 is: 17,985.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,100.12 : 27,739.26 = 13,032.60 : x
  2. Step 2: Convert to fraction form
    20,100.12/27,739.26 = 13,032.60/x
  3. Step 3: Cross multiply
    20,100.12x = 27,739.26 × 13,032.60
  4. Step 4: Simplify right side
    20,100.12x = 361,514,679.88
  5. Step 5: Solve for x
    x = 361,514,679.88/20,100.12
  6. Step 6: Final answer
    x = 17,985.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.