Home / 19,293-28,939.50-5,442

Finding the Fourth Proportional to 19,293, 28,939.50 and 5,442

Calculator

Solution

The fourth proportional to 19,293, 28,939.50 and 5,442 is: 8,163

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,293 : 28,939.50 = 5,442 : x
  2. Step 2: Convert to fraction form
    19,293/28,939.50 = 5,442/x
  3. Step 3: Cross multiply
    19,293x = 28,939.50 × 5,442
  4. Step 4: Simplify right side
    19,293x = 157,488,759
  5. Step 5: Solve for x
    x = 157,488,759/19,293
  6. Step 6: Final answer
    x = 8,163

Related Problems

Find fourth proportional to 9,646.50, 14,469.75 and 2,721
Half scale
Find fourth proportional to 38,586, 57,879 and 10,884
Double scale
Find fourth proportional to 19,294, 28,941 and 5,443
Similar ratio
Find fourth proportional to 28,939.50, 43,409.25 and 8,163
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.