Home / 31,388.01-43,313.54-17,240.85

Finding the Fourth Proportional to 31,388.01, 43,313.54 and 17,240.85

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Solution

The fourth proportional to 31,388.01, 43,313.54 and 17,240.85 is: 23,791.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,388.01 : 43,313.54 = 17,240.85 : x
  2. Step 2: Convert to fraction form
    31,388.01/43,313.54 = 17,240.85/x
  3. Step 3: Cross multiply
    31,388.01x = 43,313.54 × 17,240.85
  4. Step 4: Simplify right side
    31,388.01x = 746,762,159.90
  5. Step 5: Solve for x
    x = 746,762,159.90/31,388.01
  6. Step 6: Final answer
    x = 23,791.32

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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.