Home / 28,428-39,764

Finding the Third Proportional to 28,428 and 39,764

Calculator

Solution

The third proportional to 28,428 and 39,764 is: 55,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,428 : 39,764 = 39,764 : x
  2. Step 2: Convert to fraction form
    28,428/39,764 = 39,764/x
  3. Step 3: Cross multiply
    28,428x = 39,764 × 39,764
  4. Step 4: Simplify right side
    28,428x = 1,581,175,696
  5. Step 5: Solve for x
    x = 1,581,175,696/28,428
  6. Step 6: Final answer
    x = 55,620.36

Related Problems

Find third proportional to 14,214 and 19,882
Half scale
Find third proportional to 56,856 and 79,528
Double scale
Find third proportional to 28,430 and 39,767
Similar ratio
Find third proportional to 42,642 and 59,646
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.