Home / 18,720-24,960

Finding the Third Proportional to 18,720 and 24,960

Calculator

Solution

The third proportional to 18,720 and 24,960 is: 33,280

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720 : 24,960 = 24,960 : x
  2. Step 2: Convert to fraction form
    18,720/24,960 = 24,960/x
  3. Step 3: Cross multiply
    18,720x = 24,960 × 24,960
  4. Step 4: Simplify right side
    18,720x = 623,001,600
  5. Step 5: Solve for x
    x = 623,001,600/18,720
  6. Step 6: Final answer
    x = 33,280

Related Problems

Find third proportional to 9,360 and 12,480
Half scale
Find third proportional to 37,440 and 49,920
Double scale
Find third proportional to 18,722 and 24,963
Similar ratio
Find third proportional to 28,080 and 37,440
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.