Home / 18,405-28,660.50

Finding the Third Proportional to 18,405 and 28,660.50

Calculator

Solution

The third proportional to 18,405 and 28,660.50 is: 44,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,405 : 28,660.50 = 28,660.50 : x
  2. Step 2: Convert to fraction form
    18,405/28,660.50 = 28,660.50/x
  3. Step 3: Cross multiply
    18,405x = 28,660.50 × 28,660.50
  4. Step 4: Simplify right side
    18,405x = 821,424,260.25
  5. Step 5: Solve for x
    x = 821,424,260.25/18,405
  6. Step 6: Final answer
    x = 44,630.49

Related Problems

Find third proportional to 9,202.50 and 14,330.25
Half scale
Find third proportional to 36,810 and 57,321
Double scale
Find third proportional to 18,407 and 28,664
Similar ratio
Find third proportional to 27,607.50 and 42,990.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.