Home / 31,399.21-43,330.85-17,059.09

Finding the Fourth Proportional to 31,399.21, 43,330.85 and 17,059.09

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Solution

The fourth proportional to 31,399.21, 43,330.85 and 17,059.09 is: 23,541.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,399.21 : 43,330.85 = 17,059.09 : x
  2. Step 2: Convert to fraction form
    31,399.21/43,330.85 = 17,059.09/x
  3. Step 3: Cross multiply
    31,399.21x = 43,330.85 × 17,059.09
  4. Step 4: Simplify right side
    31,399.21x = 739,184,784.63
  5. Step 5: Solve for x
    x = 739,184,784.63/31,399.21
  6. Step 6: Final answer
    x = 23,541.51

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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.