Home / 20,358-31,458.38

Finding the Third Proportional to 20,358 and 31,458.38

Calculator

Solution

The third proportional to 20,358 and 31,458.38 is: 48,611.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,358 : 31,458.38 = 31,458.38 : x
  2. Step 2: Convert to fraction form
    20,358/31,458.38 = 31,458.38/x
  3. Step 3: Cross multiply
    20,358x = 31,458.38 × 31,458.38
  4. Step 4: Simplify right side
    20,358x = 989,629,357.64
  5. Step 5: Solve for x
    x = 989,629,357.64/20,358
  6. Step 6: Final answer
    x = 48,611.33

Related Problems

Find third proportional to 10,179 and 15,729.19
Half scale
Find third proportional to 40,716 and 62,916.75
Double scale
Find third proportional to 20,360 and 31,461
Similar ratio
Find third proportional to 30,537 and 47,187.56
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.