Home / 31,699.34-43,738.81-18,087.08

Finding the Fourth Proportional to 31,699.34, 43,738.81 and 18,087.08

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Solution

The fourth proportional to 31,699.34, 43,738.81 and 18,087.08 is: 24,956.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,699.34 : 43,738.81 = 18,087.08 : x
  2. Step 2: Convert to fraction form
    31,699.34/43,738.81 = 18,087.08/x
  3. Step 3: Cross multiply
    31,699.34x = 43,738.81 × 18,087.08
  4. Step 4: Simplify right side
    31,699.34x = 791,107,355.57
  5. Step 5: Solve for x
    x = 791,107,355.57/31,699.34
  6. Step 6: Final answer
    x = 24,956.59

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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.