Home / 55,476-83,214-18,540

Finding the Fourth Proportional to 55,476, 83,214 and 18,540

Calculator

Solution

The fourth proportional to 55,476, 83,214 and 18,540 is: 27,810

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,476 : 83,214 = 18,540 : x
  2. Step 2: Convert to fraction form
    55,476/83,214 = 18,540/x
  3. Step 3: Cross multiply
    55,476x = 83,214 × 18,540
  4. Step 4: Simplify right side
    55,476x = 1,542,787,560
  5. Step 5: Solve for x
    x = 1,542,787,560/55,476
  6. Step 6: Final answer
    x = 27,810

Related Problems

Find fourth proportional to 27,738, 41,607 and 9,270
Half scale
Find fourth proportional to 110,952, 166,428 and 37,080
Double scale
Find fourth proportional to 55,477, 83,215.50 and 18,541
Similar ratio
Find fourth proportional to 83,214, 124,821 and 27,810
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.