Home / 31,511.80-43,485.15-17,364.70

Finding the Fourth Proportional to 31,511.80, 43,485.15 and 17,364.70

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Solution

The fourth proportional to 31,511.80, 43,485.15 and 17,364.70 is: 23,962.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,511.80 : 43,485.15 = 17,364.70 : x
  2. Step 2: Convert to fraction form
    31,511.80/43,485.15 = 17,364.70/x
  3. Step 3: Cross multiply
    31,511.80x = 43,485.15 × 17,364.70
  4. Step 4: Simplify right side
    31,511.80x = 755,106,584.21
  5. Step 5: Solve for x
    x = 755,106,584.21/31,511.80
  6. Step 6: Final answer
    x = 23,962.66

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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.