Home / 21,590-47,172

Finding the Third Proportional to 21,590 and 47,172

Calculator

Solution

The third proportional to 21,590 and 47,172 is: 103,066.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,590 : 47,172 = 47,172 : x
  2. Step 2: Convert to fraction form
    21,590/47,172 = 47,172/x
  3. Step 3: Cross multiply
    21,590x = 47,172 × 47,172
  4. Step 4: Simplify right side
    21,590x = 2,225,197,584
  5. Step 5: Solve for x
    x = 2,225,197,584/21,590
  6. Step 6: Final answer
    x = 103,066.12

Related Problems

Find third proportional to 10,795 and 23,586
Half scale
Find third proportional to 43,180 and 94,344
Double scale
Find third proportional to 21,592 and 47,176
Similar ratio
Find third proportional to 32,385 and 70,758
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.