Home / 19,680-29,520-5,088

Finding the Fourth Proportional to 19,680, 29,520 and 5,088

Calculator

Solution

The fourth proportional to 19,680, 29,520 and 5,088 is: 7,632

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,680 : 29,520 = 5,088 : x
  2. Step 2: Convert to fraction form
    19,680/29,520 = 5,088/x
  3. Step 3: Cross multiply
    19,680x = 29,520 × 5,088
  4. Step 4: Simplify right side
    19,680x = 150,197,760
  5. Step 5: Solve for x
    x = 150,197,760/19,680
  6. Step 6: Final answer
    x = 7,632

Related Problems

Find fourth proportional to 9,840, 14,760 and 2,544
Half scale
Find fourth proportional to 39,360, 59,040 and 10,176
Double scale
Find fourth proportional to 19,681, 29,521.50 and 5,089
Similar ratio
Find fourth proportional to 29,520, 44,280 and 7,632
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.