Home / 15,687-34,200

Finding the Third Proportional to 15,687 and 34,200

Calculator

Solution

The third proportional to 15,687 and 34,200 is: 74,561.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,687 : 34,200 = 34,200 : x
  2. Step 2: Convert to fraction form
    15,687/34,200 = 34,200/x
  3. Step 3: Cross multiply
    15,687x = 34,200 × 34,200
  4. Step 4: Simplify right side
    15,687x = 1,169,640,000
  5. Step 5: Solve for x
    x = 1,169,640,000/15,687
  6. Step 6: Final answer
    x = 74,561.10

Related Problems

Find third proportional to 7,843.50 and 17,100
Half scale
Find third proportional to 31,374 and 68,400
Double scale
Find third proportional to 15,689 and 34,204
Similar ratio
Find third proportional to 23,530.50 and 51,300
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.