Home / 31,369.41-43,289.08-17,939.87

Finding the Fourth Proportional to 31,369.41, 43,289.08 and 17,939.87

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Solution

The fourth proportional to 31,369.41, 43,289.08 and 17,939.87 is: 24,756.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,369.41 : 43,289.08 = 17,939.87 : x
  2. Step 2: Convert to fraction form
    31,369.41/43,289.08 = 17,939.87/x
  3. Step 3: Cross multiply
    31,369.41x = 43,289.08 × 17,939.87
  4. Step 4: Simplify right side
    31,369.41x = 776,600,368.66
  5. Step 5: Solve for x
    x = 776,600,368.66/31,369.41
  6. Step 6: Final answer
    x = 24,756.61

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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.