Home / 34,150.01-47,123.78-20,000.12

Finding the Fourth Proportional to 34,150.01, 47,123.78 and 20,000.12

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Solution

The fourth proportional to 34,150.01, 47,123.78 and 20,000.12 is: 27,598.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,150.01 : 47,123.78 = 20,000.12 : x
  2. Step 2: Convert to fraction form
    34,150.01/47,123.78 = 20,000.12/x
  3. Step 3: Cross multiply
    34,150.01x = 47,123.78 × 20,000.12
  4. Step 4: Simplify right side
    34,150.01x = 942,480,919.23
  5. Step 5: Solve for x
    x = 942,480,919.23/34,150.01
  6. Step 6: Final answer
    x = 27,598.27

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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.