Home / 20,257.56-27,948.87-11,303.64

Finding the Fourth Proportional to 20,257.56, 27,948.87 and 11,303.64

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Solution

The fourth proportional to 20,257.56, 27,948.87 and 11,303.64 is: 15,595.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,257.56 : 27,948.87 = 11,303.64 : x
  2. Step 2: Convert to fraction form
    20,257.56/27,948.87 = 11,303.64/x
  3. Step 3: Cross multiply
    20,257.56x = 27,948.87 × 11,303.64
  4. Step 4: Simplify right side
    20,257.56x = 315,923,964.89
  5. Step 5: Solve for x
    x = 315,923,964.89/20,257.56
  6. Step 6: Final answer
    x = 15,595.36

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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.