Home / 28,835.11-39,796.38-16,903.20

Finding the Fourth Proportional to 28,835.11, 39,796.38 and 16,903.20

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Solution

The fourth proportional to 28,835.11, 39,796.38 and 16,903.20 is: 23,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,835.11 : 39,796.38 = 16,903.20 : x
  2. Step 2: Convert to fraction form
    28,835.11/39,796.38 = 16,903.20/x
  3. Step 3: Cross multiply
    28,835.11x = 39,796.38 × 16,903.20
  4. Step 4: Simplify right side
    28,835.11x = 672,686,170.42
  5. Step 5: Solve for x
    x = 672,686,170.42/28,835.11
  6. Step 6: Final answer
    x = 23,328.72

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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.