Home / 27,130.60-40,739.10-18,404.20

Finding the Fourth Proportional to 27,130.60, 40,739.10 and 18,404.20

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Solution

The fourth proportional to 27,130.60, 40,739.10 and 18,404.20 is: 27,635.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,130.60 : 40,739.10 = 18,404.20 : x
  2. Step 2: Convert to fraction form
    27,130.60/40,739.10 = 18,404.20/x
  3. Step 3: Cross multiply
    27,130.60x = 40,739.10 × 18,404.20
  4. Step 4: Simplify right side
    27,130.60x = 749,770,544.22
  5. Step 5: Solve for x
    x = 749,770,544.22/27,130.60
  6. Step 6: Final answer
    x = 27,635.60

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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.