Home / 26,133.20-39,221.40-12,114.80

Finding the Fourth Proportional to 26,133.20, 39,221.40 and 12,114.80

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Solution

The fourth proportional to 26,133.20, 39,221.40 and 12,114.80 is: 18,182.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,133.20 : 39,221.40 = 12,114.80 : x
  2. Step 2: Convert to fraction form
    26,133.20/39,221.40 = 12,114.80/x
  3. Step 3: Cross multiply
    26,133.20x = 39,221.40 × 12,114.80
  4. Step 4: Simplify right side
    26,133.20x = 475,159,416.72
  5. Step 5: Solve for x
    x = 475,159,416.72/26,133.20
  6. Step 6: Final answer
    x = 18,182.21

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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.