Home / 38,130-57,199-10,428

Finding the Fourth Proportional to 38,130, 57,199 and 10,428

Calculator

Solution

The fourth proportional to 38,130, 57,199 and 10,428 is: 15,643.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,130 : 57,199 = 10,428 : x
  2. Step 2: Convert to fraction form
    38,130/57,199 = 10,428/x
  3. Step 3: Cross multiply
    38,130x = 57,199 × 10,428
  4. Step 4: Simplify right side
    38,130x = 596,471,172
  5. Step 5: Solve for x
    x = 596,471,172/38,130
  6. Step 6: Final answer
    x = 15,643.09

Related Problems

Find fourth proportional to 19,065, 28,599.50 and 5,214
Half scale
Find fourth proportional to 76,260, 114,398 and 20,856
Double scale
Find fourth proportional to 38,131, 57,200.50 and 10,429
Similar ratio
Find fourth proportional to 57,195, 85,798.50 and 15,642
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.