Home / 23,109.21-34,496.64-20,306.70

Finding the Fourth Proportional to 23,109.21, 34,496.64 and 20,306.70

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Solution

The fourth proportional to 23,109.21, 34,496.64 and 20,306.70 is: 30,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,109.21 : 34,496.64 = 20,306.70 : x
  2. Step 2: Convert to fraction form
    23,109.21/34,496.64 = 20,306.70/x
  3. Step 3: Cross multiply
    23,109.21x = 34,496.64 × 20,306.70
  4. Step 4: Simplify right side
    23,109.21x = 700,512,919.49
  5. Step 5: Solve for x
    x = 700,512,919.49/23,109.21
  6. Step 6: Final answer
    x = 30,313.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.