Home / 30,770-47,787

Finding the Third Proportional to 30,770 and 47,787

Calculator

Solution

The third proportional to 30,770 and 47,787 is: 74,215.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,770 : 47,787 = 47,787 : x
  2. Step 2: Convert to fraction form
    30,770/47,787 = 47,787/x
  3. Step 3: Cross multiply
    30,770x = 47,787 × 47,787
  4. Step 4: Simplify right side
    30,770x = 2,283,597,369
  5. Step 5: Solve for x
    x = 2,283,597,369/30,770
  6. Step 6: Final answer
    x = 74,215.06

Related Problems

Find third proportional to 15,385 and 23,893.50
Half scale
Find third proportional to 61,540 and 95,574
Double scale
Find third proportional to 30,772 and 47,790
Similar ratio
Find third proportional to 46,155 and 71,680.50
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.