Home / 28,316-39,609

Finding the Third Proportional to 28,316 and 39,609

Calculator

Solution

The third proportional to 28,316 and 39,609 is: 55,405.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,316 : 39,609 = 39,609 : x
  2. Step 2: Convert to fraction form
    28,316/39,609 = 39,609/x
  3. Step 3: Cross multiply
    28,316x = 39,609 × 39,609
  4. Step 4: Simplify right side
    28,316x = 1,568,872,881
  5. Step 5: Solve for x
    x = 1,568,872,881/28,316
  6. Step 6: Final answer
    x = 55,405.88

Related Problems

Find third proportional to 14,158 and 19,804.50
Half scale
Find third proportional to 56,632 and 79,218
Double scale
Find third proportional to 28,318 and 39,612
Similar ratio
Find third proportional to 42,474 and 59,413.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.