Home / 28,421-43,028

Finding the Third Proportional to 28,421 and 43,028

Calculator

Solution

The third proportional to 28,421 and 43,028 is: 65,142.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,421 : 43,028 = 43,028 : x
  2. Step 2: Convert to fraction form
    28,421/43,028 = 43,028/x
  3. Step 3: Cross multiply
    28,421x = 43,028 × 43,028
  4. Step 4: Simplify right side
    28,421x = 1,851,408,784
  5. Step 5: Solve for x
    x = 1,851,408,784/28,421
  6. Step 6: Final answer
    x = 65,142.28

Related Problems

Find third proportional to 14,210.50 and 21,514
Half scale
Find third proportional to 56,842 and 86,056
Double scale
Find third proportional to 28,423 and 43,031
Similar ratio
Find third proportional to 42,631.50 and 64,542
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.