Home / 31,132.84-42,963.44-16,986

Finding the Fourth Proportional to 31,132.84, 42,963.44 and 16,986

Calculator

Solution

The fourth proportional to 31,132.84, 42,963.44 and 16,986 is: 23,440.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,132.84 : 42,963.44 = 16,986 : x
  2. Step 2: Convert to fraction form
    31,132.84/42,963.44 = 16,986/x
  3. Step 3: Cross multiply
    31,132.84x = 42,963.44 × 16,986
  4. Step 4: Simplify right side
    31,132.84x = 729,776,991.84
  5. Step 5: Solve for x
    x = 729,776,991.84/31,132.84
  6. Step 6: Final answer
    x = 23,440.75

Related Problems

Find fourth proportional to 15,566.42, 21,481.72 and 8,493
Half scale
Find fourth proportional to 62,265.68, 85,926.88 and 33,972
Double scale
Find fourth proportional to 31,133.84, 42,964.82 and 16,987
Similar ratio
Find fourth proportional to 46,699.26, 64,445.16 and 25,479
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.