Home / 20,256.21-30,387.35-7,106.27

Finding the Fourth Proportional to 20,256.21, 30,387.35 and 7,106.27

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Solution

The fourth proportional to 20,256.21, 30,387.35 and 7,106.27 is: 10,660.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,256.21 : 30,387.35 = 7,106.27 : x
  2. Step 2: Convert to fraction form
    20,256.21/30,387.35 = 7,106.27/x
  3. Step 3: Cross multiply
    20,256.21x = 30,387.35 × 7,106.27
  4. Step 4: Simplify right side
    20,256.21x = 215,940,579.51
  5. Step 5: Solve for x
    x = 215,940,579.51/20,256.21
  6. Step 6: Final answer
    x = 10,660.46

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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.