Home / 31,815.70-43,905.56-17,668.50

Finding the Fourth Proportional to 31,815.70, 43,905.56 and 17,668.50

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Solution

The fourth proportional to 31,815.70, 43,905.56 and 17,668.50 is: 24,382.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,815.70 : 43,905.56 = 17,668.50 : x
  2. Step 2: Convert to fraction form
    31,815.70/43,905.56 = 17,668.50/x
  3. Step 3: Cross multiply
    31,815.70x = 43,905.56 × 17,668.50
  4. Step 4: Simplify right side
    31,815.70x = 775,745,386.86
  5. Step 5: Solve for x
    x = 775,745,386.86/31,815.70
  6. Step 6: Final answer
    x = 24,382.47

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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.