Home / 20,255.60-27,953.36-11,757.04

Finding the Fourth Proportional to 20,255.60, 27,953.36 and 11,757.04

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Solution

The fourth proportional to 20,255.60, 27,953.36 and 11,757.04 is: 16,225.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.60 : 27,953.36 = 11,757.04 : x
  2. Step 2: Convert to fraction form
    20,255.60/27,953.36 = 11,757.04/x
  3. Step 3: Cross multiply
    20,255.60x = 27,953.36 × 11,757.04
  4. Step 4: Simplify right side
    20,255.60x = 328,648,771.65
  5. Step 5: Solve for x
    x = 328,648,771.65/20,255.60
  6. Step 6: Final answer
    x = 16,225.08

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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.