Home / 21,432-45,642

Finding the Third Proportional to 21,432 and 45,642

Calculator

Solution

The third proportional to 21,432 and 45,642 is: 97,200.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,432 : 45,642 = 45,642 : x
  2. Step 2: Convert to fraction form
    21,432/45,642 = 45,642/x
  3. Step 3: Cross multiply
    21,432x = 45,642 × 45,642
  4. Step 4: Simplify right side
    21,432x = 2,083,192,164
  5. Step 5: Solve for x
    x = 2,083,192,164/21,432
  6. Step 6: Final answer
    x = 97,200.08

Related Problems

Find third proportional to 10,716 and 22,821
Half scale
Find third proportional to 42,864 and 91,284
Double scale
Find third proportional to 21,434 and 45,646
Similar ratio
Find third proportional to 32,148 and 68,463
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.13) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.