Home / 31,868.04-43,969.86-19,290.36

Finding the Fourth Proportional to 31,868.04, 43,969.86 and 19,290.36

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Solution

The fourth proportional to 31,868.04, 43,969.86 and 19,290.36 is: 26,615.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,868.04 : 43,969.86 = 19,290.36 : x
  2. Step 2: Convert to fraction form
    31,868.04/43,969.86 = 19,290.36/x
  3. Step 3: Cross multiply
    31,868.04x = 43,969.86 × 19,290.36
  4. Step 4: Simplify right side
    31,868.04x = 848,194,428.55
  5. Step 5: Solve for x
    x = 848,194,428.55/31,868.04
  6. Step 6: Final answer
    x = 26,615.83

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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.