Home / 21,815-34,599

Finding the Third Proportional to 21,815 and 34,599

Calculator

Solution

The third proportional to 21,815 and 34,599 is: 54,874.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,815 : 34,599 = 34,599 : x
  2. Step 2: Convert to fraction form
    21,815/34,599 = 34,599/x
  3. Step 3: Cross multiply
    21,815x = 34,599 × 34,599
  4. Step 4: Simplify right side
    21,815x = 1,197,090,801
  5. Step 5: Solve for x
    x = 1,197,090,801/21,815
  6. Step 6: Final answer
    x = 54,874.66

Related Problems

Find third proportional to 10,907.50 and 17,299.50
Half scale
Find third proportional to 43,630 and 69,198
Double scale
Find third proportional to 21,817 and 34,602
Similar ratio
Find third proportional to 32,722.50 and 51,898.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.