Home / 21,420-32,418

Finding the Third Proportional to 21,420 and 32,418

Calculator

Solution

The third proportional to 21,420 and 32,418 is: 49,062.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,420 : 32,418 = 32,418 : x
  2. Step 2: Convert to fraction form
    21,420/32,418 = 32,418/x
  3. Step 3: Cross multiply
    21,420x = 32,418 × 32,418
  4. Step 4: Simplify right side
    21,420x = 1,050,926,724
  5. Step 5: Solve for x
    x = 1,050,926,724/21,420
  6. Step 6: Final answer
    x = 49,062.87

Related Problems

Find third proportional to 10,710 and 16,209
Half scale
Find third proportional to 42,840 and 64,836
Double scale
Find third proportional to 21,422 and 32,421
Similar ratio
Find third proportional to 32,130 and 48,627
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.