Home / 21,638-47,772

Finding the Third Proportional to 21,638 and 47,772

Calculator

Solution

The third proportional to 21,638 and 47,772 is: 105,470.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,638 : 47,772 = 47,772 : x
  2. Step 2: Convert to fraction form
    21,638/47,772 = 47,772/x
  3. Step 3: Cross multiply
    21,638x = 47,772 × 47,772
  4. Step 4: Simplify right side
    21,638x = 2,282,163,984
  5. Step 5: Solve for x
    x = 2,282,163,984/21,638
  6. Step 6: Final answer
    x = 105,470.19

Related Problems

Find third proportional to 10,819 and 23,886
Half scale
Find third proportional to 43,276 and 95,544
Double scale
Find third proportional to 21,640 and 47,776
Similar ratio
Find third proportional to 32,457 and 71,658
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.