Home / 78,964-118,446-20,596

Finding the Fourth Proportional to 78,964, 118,446 and 20,596

Calculator

Solution

The fourth proportional to 78,964, 118,446 and 20,596 is: 30,894

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,964 : 118,446 = 20,596 : x
  2. Step 2: Convert to fraction form
    78,964/118,446 = 20,596/x
  3. Step 3: Cross multiply
    78,964x = 118,446 × 20,596
  4. Step 4: Simplify right side
    78,964x = 2,439,513,816
  5. Step 5: Solve for x
    x = 2,439,513,816/78,964
  6. Step 6: Final answer
    x = 30,894

Related Problems

Find fourth proportional to 39,482, 59,223 and 10,298
Half scale
Find fourth proportional to 157,928, 236,892 and 41,192
Double scale
Find fourth proportional to 78,965, 118,447.50 and 20,597
Similar ratio
Find fourth proportional to 118,446, 177,669 and 30,894
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.