Home / 18,520-28,504

Finding the Third Proportional to 18,520 and 28,504

Calculator

Solution

The third proportional to 18,520 and 28,504 is: 43,870.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,520 : 28,504 = 28,504 : x
  2. Step 2: Convert to fraction form
    18,520/28,504 = 28,504/x
  3. Step 3: Cross multiply
    18,520x = 28,504 × 28,504
  4. Step 4: Simplify right side
    18,520x = 812,478,016
  5. Step 5: Solve for x
    x = 812,478,016/18,520
  6. Step 6: Final answer
    x = 43,870.30

Related Problems

Find third proportional to 9,260 and 14,252
Half scale
Find third proportional to 37,040 and 57,008
Double scale
Find third proportional to 18,522 and 28,507
Similar ratio
Find third proportional to 27,780 and 42,756
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.