Home / 31,718-47,577-9,830

Finding the Fourth Proportional to 31,718, 47,577 and 9,830

Calculator

Solution

The fourth proportional to 31,718, 47,577 and 9,830 is: 14,745

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,718 : 47,577 = 9,830 : x
  2. Step 2: Convert to fraction form
    31,718/47,577 = 9,830/x
  3. Step 3: Cross multiply
    31,718x = 47,577 × 9,830
  4. Step 4: Simplify right side
    31,718x = 467,681,910
  5. Step 5: Solve for x
    x = 467,681,910/31,718
  6. Step 6: Final answer
    x = 14,745

Related Problems

Find fourth proportional to 15,859, 23,788.50 and 4,915
Half scale
Find fourth proportional to 63,436, 95,154 and 19,660
Double scale
Find fourth proportional to 31,719, 47,578.50 and 9,831
Similar ratio
Find fourth proportional to 47,577, 71,365.50 and 14,745
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.