Home / 20,256.78-27,953.19-11,303.58

Finding the Fourth Proportional to 20,256.78, 27,953.19 and 11,303.58

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Solution

The fourth proportional to 20,256.78, 27,953.19 and 11,303.58 is: 15,598.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.78 : 27,953.19 = 11,303.58 : x
  2. Step 2: Convert to fraction form
    20,256.78/27,953.19 = 11,303.58/x
  3. Step 3: Cross multiply
    20,256.78x = 27,953.19 × 11,303.58
  4. Step 4: Simplify right side
    20,256.78x = 315,971,119.42
  5. Step 5: Solve for x
    x = 315,971,119.42/20,256.78
  6. Step 6: Final answer
    x = 15,598.29

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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.