Home / 21,387-47,512.50

Finding the Third Proportional to 21,387 and 47,512.50

Calculator

Solution

The third proportional to 21,387 and 47,512.50 is: 105,551.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,387 : 47,512.50 = 47,512.50 : x
  2. Step 2: Convert to fraction form
    21,387/47,512.50 = 47,512.50/x
  3. Step 3: Cross multiply
    21,387x = 47,512.50 × 47,512.50
  4. Step 4: Simplify right side
    21,387x = 2,257,437,656.25
  5. Step 5: Solve for x
    x = 2,257,437,656.25/21,387
  6. Step 6: Final answer
    x = 105,551.86

Related Problems

Find third proportional to 10,693.50 and 23,756.25
Half scale
Find third proportional to 42,774 and 95,025
Double scale
Find third proportional to 21,389 and 47,517
Similar ratio
Find third proportional to 32,080.50 and 71,268.75
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.