Home / 18,216-28,136

Finding the Third Proportional to 18,216 and 28,136

Calculator

Solution

The third proportional to 18,216 and 28,136 is: 43,458.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216 : 28,136 = 28,136 : x
  2. Step 2: Convert to fraction form
    18,216/28,136 = 28,136/x
  3. Step 3: Cross multiply
    18,216x = 28,136 × 28,136
  4. Step 4: Simplify right side
    18,216x = 791,634,496
  5. Step 5: Solve for x
    x = 791,634,496/18,216
  6. Step 6: Final answer
    x = 43,458.20

Related Problems

Find third proportional to 9,108 and 14,068
Half scale
Find third proportional to 36,432 and 56,272
Double scale
Find third proportional to 18,218 and 28,139
Similar ratio
Find third proportional to 27,324 and 42,204
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.