Home / 39.87-59.40-39.33

Finding the Fourth Proportional to 39.87, 59.40 and 39.33

Calculator

Solution

The fourth proportional to 39.87, 59.40 and 39.33 is: 58.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39.87 : 59.40 = 39.33 : x
  2. Step 2: Convert to fraction form
    39.87/59.40 = 39.33/x
  3. Step 3: Cross multiply
    39.87x = 59.40 × 39.33
  4. Step 4: Simplify right side
    39.87x = 2,336.20
  5. Step 5: Solve for x
    x = 2,336.20/39.87
  6. Step 6: Final answer
    x = 58.60

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.