Home / 31,786.14-43,866.93-17,638.99

Finding the Fourth Proportional to 31,786.14, 43,866.93 and 17,638.99

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Solution

The fourth proportional to 31,786.14, 43,866.93 and 17,638.99 is: 24,342.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,786.14 : 43,866.93 = 17,638.99 : x
  2. Step 2: Convert to fraction form
    31,786.14/43,866.93 = 17,638.99/x
  3. Step 3: Cross multiply
    31,786.14x = 43,866.93 × 17,638.99
  4. Step 4: Simplify right side
    31,786.14x = 773,768,339.60
  5. Step 5: Solve for x
    x = 773,768,339.60/31,786.14
  6. Step 6: Final answer
    x = 24,342.95

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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.