Home / 31,208-46,812-9,320

Finding the Fourth Proportional to 31,208, 46,812 and 9,320

Calculator

Solution

The fourth proportional to 31,208, 46,812 and 9,320 is: 13,980

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,208 : 46,812 = 9,320 : x
  2. Step 2: Convert to fraction form
    31,208/46,812 = 9,320/x
  3. Step 3: Cross multiply
    31,208x = 46,812 × 9,320
  4. Step 4: Simplify right side
    31,208x = 436,287,840
  5. Step 5: Solve for x
    x = 436,287,840/31,208
  6. Step 6: Final answer
    x = 13,980

Related Problems

Find fourth proportional to 15,604, 23,406 and 4,660
Half scale
Find fourth proportional to 62,416, 93,624 and 18,640
Double scale
Find fourth proportional to 31,209, 46,813.50 and 9,321
Similar ratio
Find fourth proportional to 46,812, 70,218 and 13,980
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.