Home / 38,826-58,239-9,642

Finding the Fourth Proportional to 38,826, 58,239 and 9,642

Calculator

Solution

The fourth proportional to 38,826, 58,239 and 9,642 is: 14,463

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,826 : 58,239 = 9,642 : x
  2. Step 2: Convert to fraction form
    38,826/58,239 = 9,642/x
  3. Step 3: Cross multiply
    38,826x = 58,239 × 9,642
  4. Step 4: Simplify right side
    38,826x = 561,540,438
  5. Step 5: Solve for x
    x = 561,540,438/38,826
  6. Step 6: Final answer
    x = 14,463

Related Problems

Find fourth proportional to 19,413, 29,119.50 and 4,821
Half scale
Find fourth proportional to 77,652, 116,478 and 19,284
Double scale
Find fourth proportional to 38,827, 58,240.50 and 9,643
Similar ratio
Find fourth proportional to 58,239, 87,358.50 and 14,463
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.