Home / 31,436.70-43,383.55-17,290.45

Finding the Fourth Proportional to 31,436.70, 43,383.55 and 17,290.45

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Solution

The fourth proportional to 31,436.70, 43,383.55 and 17,290.45 is: 23,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,436.70 : 43,383.55 = 17,290.45 : x
  2. Step 2: Convert to fraction form
    31,436.70/43,383.55 = 17,290.45/x
  3. Step 3: Cross multiply
    31,436.70x = 43,383.55 × 17,290.45
  4. Step 4: Simplify right side
    31,436.70x = 750,121,102.10
  5. Step 5: Solve for x
    x = 750,121,102.10/31,436.70
  6. Step 6: Final answer
    x = 23,861.32

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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.