Home / 47,040-70,560-14,208

Finding the Fourth Proportional to 47,040, 70,560 and 14,208

Calculator

Solution

The fourth proportional to 47,040, 70,560 and 14,208 is: 21,312

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,040 : 70,560 = 14,208 : x
  2. Step 2: Convert to fraction form
    47,040/70,560 = 14,208/x
  3. Step 3: Cross multiply
    47,040x = 70,560 × 14,208
  4. Step 4: Simplify right side
    47,040x = 1,002,516,480
  5. Step 5: Solve for x
    x = 1,002,516,480/47,040
  6. Step 6: Final answer
    x = 21,312

Related Problems

Find fourth proportional to 23,520, 35,280 and 7,104
Half scale
Find fourth proportional to 94,080, 141,120 and 28,416
Double scale
Find fourth proportional to 47,041, 70,561.50 and 14,209
Similar ratio
Find fourth proportional to 70,560, 105,840 and 21,312
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.