Home / 31,708-47,562-13,240

Finding the Fourth Proportional to 31,708, 47,562 and 13,240

Calculator

Solution

The fourth proportional to 31,708, 47,562 and 13,240 is: 19,860

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,708 : 47,562 = 13,240 : x
  2. Step 2: Convert to fraction form
    31,708/47,562 = 13,240/x
  3. Step 3: Cross multiply
    31,708x = 47,562 × 13,240
  4. Step 4: Simplify right side
    31,708x = 629,720,880
  5. Step 5: Solve for x
    x = 629,720,880/31,708
  6. Step 6: Final answer
    x = 19,860

Related Problems

Find fourth proportional to 15,854, 23,781 and 6,620
Half scale
Find fourth proportional to 63,416, 95,124 and 26,480
Double scale
Find fourth proportional to 31,709, 47,563.50 and 13,241
Similar ratio
Find fourth proportional to 47,562, 71,343 and 19,860
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.