Home / 15,558-20,960

Finding the Third Proportional to 15,558 and 20,960

Calculator

Solution

The third proportional to 15,558 and 20,960 is: 28,237.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,558 : 20,960 = 20,960 : x
  2. Step 2: Convert to fraction form
    15,558/20,960 = 20,960/x
  3. Step 3: Cross multiply
    15,558x = 20,960 × 20,960
  4. Step 4: Simplify right side
    15,558x = 439,321,600
  5. Step 5: Solve for x
    x = 439,321,600/15,558
  6. Step 6: Final answer
    x = 28,237.67

Related Problems

Find third proportional to 7,779 and 10,480
Half scale
Find third proportional to 31,116 and 41,920
Double scale
Find third proportional to 15,560 and 20,963
Similar ratio
Find third proportional to 23,337 and 31,440
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.