Home / 20,580-43,428

Finding the Third Proportional to 20,580 and 43,428

Calculator

Solution

The third proportional to 20,580 and 43,428 is: 91,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,580 : 43,428 = 43,428 : x
  2. Step 2: Convert to fraction form
    20,580/43,428 = 43,428/x
  3. Step 3: Cross multiply
    20,580x = 43,428 × 43,428
  4. Step 4: Simplify right side
    20,580x = 1,885,991,184
  5. Step 5: Solve for x
    x = 1,885,991,184/20,580
  6. Step 6: Final answer
    x = 91,641.94

Related Problems

Find third proportional to 10,290 and 21,714
Half scale
Find third proportional to 41,160 and 86,856
Double scale
Find third proportional to 20,582 and 43,432
Similar ratio
Find third proportional to 30,870 and 65,142
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.11) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.