Home / 21,015.28-29,001-11,584

Finding the Fourth Proportional to 21,015.28, 29,001 and 11,584

Calculator

Solution

The fourth proportional to 21,015.28, 29,001 and 11,584 is: 15,985.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,015.28 : 29,001 = 11,584 : x
  2. Step 2: Convert to fraction form
    21,015.28/29,001 = 11,584/x
  3. Step 3: Cross multiply
    21,015.28x = 29,001 × 11,584
  4. Step 4: Simplify right side
    21,015.28x = 335,947,584
  5. Step 5: Solve for x
    x = 335,947,584/21,015.28
  6. Step 6: Final answer
    x = 15,985.87

Related Problems

Find fourth proportional to 10,507.64, 14,500.50 and 5,792
Half scale
Find fourth proportional to 42,030.56, 58,002 and 23,168
Double scale
Find fourth proportional to 21,016.28, 29,002.38 and 11,585
Similar ratio
Find fourth proportional to 31,522.92, 43,501.50 and 17,376
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.