Home / 31,097.98-42,815.28-27,678.70

Finding the Fourth Proportional to 31,097.98, 42,815.28 and 27,678.70

Calculator

Solution

The fourth proportional to 31,097.98, 42,815.28 and 27,678.70 is: 38,107.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,097.98 : 42,815.28 = 27,678.70 : x
  2. Step 2: Convert to fraction form
    31,097.98/42,815.28 = 27,678.70/x
  3. Step 3: Cross multiply
    31,097.98x = 42,815.28 × 27,678.70
  4. Step 4: Simplify right side
    31,097.98x = 1,185,071,290.54
  5. Step 5: Solve for x
    x = 1,185,071,290.54/31,097.98
  6. Step 6: Final answer
    x = 38,107.66

Related Problems

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.