Home / 31,615.92-43,634.30-18,186.93

Finding the Fourth Proportional to 31,615.92, 43,634.30 and 18,186.93

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Solution

The fourth proportional to 31,615.92, 43,634.30 and 18,186.93 is: 25,100.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,615.92 : 43,634.30 = 18,186.93 : x
  2. Step 2: Convert to fraction form
    31,615.92/43,634.30 = 18,186.93/x
  3. Step 3: Cross multiply
    31,615.92x = 43,634.30 × 18,186.93
  4. Step 4: Simplify right side
    31,615.92x = 793,573,868.76
  5. Step 5: Solve for x
    x = 793,573,868.76/31,615.92
  6. Step 6: Final answer
    x = 25,100.45

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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.