Home / 31,515.50-43,491.39-17,369.66

Finding the Fourth Proportional to 31,515.50, 43,491.39 and 17,369.66

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Solution

The fourth proportional to 31,515.50, 43,491.39 and 17,369.66 is: 23,970.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.50 : 43,491.39 = 17,369.66 : x
  2. Step 2: Convert to fraction form
    31,515.50/43,491.39 = 17,369.66/x
  3. Step 3: Cross multiply
    31,515.50x = 43,491.39 × 17,369.66
  4. Step 4: Simplify right side
    31,515.50x = 755,430,657.23
  5. Step 5: Solve for x
    x = 755,430,657.23/31,515.50
  6. Step 6: Final answer
    x = 23,970.13

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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.