Home / 31,860.08-43,969.37-19,113.74

Finding the Fourth Proportional to 31,860.08, 43,969.37 and 19,113.74

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Solution

The fourth proportional to 31,860.08, 43,969.37 and 19,113.74 is: 26,378.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,860.08 : 43,969.37 = 19,113.74 : x
  2. Step 2: Convert to fraction form
    31,860.08/43,969.37 = 19,113.74/x
  3. Step 3: Cross multiply
    31,860.08x = 43,969.37 × 19,113.74
  4. Step 4: Simplify right side
    31,860.08x = 840,419,106.14
  5. Step 5: Solve for x
    x = 840,419,106.14/31,860.08
  6. Step 6: Final answer
    x = 26,378.44

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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.