Home / 31,696.32-43,740.48-18,267.60

Finding the Fourth Proportional to 31,696.32, 43,740.48 and 18,267.60

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Solution

The fourth proportional to 31,696.32, 43,740.48 and 18,267.60 is: 25,209.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,696.32 : 43,740.48 = 18,267.60 : x
  2. Step 2: Convert to fraction form
    31,696.32/43,740.48 = 18,267.60/x
  3. Step 3: Cross multiply
    31,696.32x = 43,740.48 × 18,267.60
  4. Step 4: Simplify right side
    31,696.32x = 799,033,592.45
  5. Step 5: Solve for x
    x = 799,033,592.45/31,696.32
  6. Step 6: Final answer
    x = 25,209.03

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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.