Home / 55,750-83,625-18,814

Finding the Fourth Proportional to 55,750, 83,625 and 18,814

Calculator

Solution

The fourth proportional to 55,750, 83,625 and 18,814 is: 28,221

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,750 : 83,625 = 18,814 : x
  2. Step 2: Convert to fraction form
    55,750/83,625 = 18,814/x
  3. Step 3: Cross multiply
    55,750x = 83,625 × 18,814
  4. Step 4: Simplify right side
    55,750x = 1,573,320,750
  5. Step 5: Solve for x
    x = 1,573,320,750/55,750
  6. Step 6: Final answer
    x = 28,221

Related Problems

Find fourth proportional to 27,875, 41,812.50 and 9,407
Half scale
Find fourth proportional to 111,500, 167,250 and 37,628
Double scale
Find fourth proportional to 55,751, 83,626.50 and 18,815
Similar ratio
Find fourth proportional to 83,625, 125,437.50 and 28,221
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.