Home / 31,235.16-43,104-17,087.72

Finding the Fourth Proportional to 31,235.16, 43,104 and 17,087.72

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Solution

The fourth proportional to 31,235.16, 43,104 and 17,087.72 is: 23,580.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,235.16 : 43,104 = 17,087.72 : x
  2. Step 2: Convert to fraction form
    31,235.16/43,104 = 17,087.72/x
  3. Step 3: Cross multiply
    31,235.16x = 43,104 × 17,087.72
  4. Step 4: Simplify right side
    31,235.16x = 736,549,082.88
  5. Step 5: Solve for x
    x = 736,549,082.88/31,235.16
  6. Step 6: Final answer
    x = 23,580.77

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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.