Home / 20,255.57-27,953.81-11,303.15

Finding the Fourth Proportional to 20,255.57, 27,953.81 and 11,303.15

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Solution

The fourth proportional to 20,255.57, 27,953.81 and 11,303.15 is: 15,598.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,255.57 : 27,953.81 = 11,303.15 : x
  2. Step 2: Convert to fraction form
    20,255.57/27,953.81 = 11,303.15/x
  3. Step 3: Cross multiply
    20,255.57x = 27,953.81 × 11,303.15
  4. Step 4: Simplify right side
    20,255.57x = 315,965,953.60
  5. Step 5: Solve for x
    x = 315,965,953.60/20,255.57
  6. Step 6: Final answer
    x = 15,598.97

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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.