Home / 31,515.46-43,491.57-17,368.78

Finding the Fourth Proportional to 31,515.46, 43,491.57 and 17,368.78

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Solution

The fourth proportional to 31,515.46, 43,491.57 and 17,368.78 is: 23,969.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,515.46 : 43,491.57 = 17,368.78 : x
  2. Step 2: Convert to fraction form
    31,515.46/43,491.57 = 17,368.78/x
  3. Step 3: Cross multiply
    31,515.46x = 43,491.57 × 17,368.78
  4. Step 4: Simplify right side
    31,515.46x = 755,395,511.18
  5. Step 5: Solve for x
    x = 755,395,511.18/31,515.46
  6. Step 6: Final answer
    x = 23,969.05

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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.