Home / 19,428-29,880

Finding the Third Proportional to 19,428 and 29,880

Calculator

Solution

The third proportional to 19,428 and 29,880 is: 45,955.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,428 : 29,880 = 29,880 : x
  2. Step 2: Convert to fraction form
    19,428/29,880 = 29,880/x
  3. Step 3: Cross multiply
    19,428x = 29,880 × 29,880
  4. Step 4: Simplify right side
    19,428x = 892,814,400
  5. Step 5: Solve for x
    x = 892,814,400/19,428
  6. Step 6: Final answer
    x = 45,955.03

Related Problems

Find third proportional to 9,714 and 14,940
Half scale
Find third proportional to 38,856 and 59,760
Double scale
Find third proportional to 19,430 and 29,883
Similar ratio
Find third proportional to 29,142 and 44,820
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.