Home / 70,692-106,038-21,444

Finding the Fourth Proportional to 70,692, 106,038 and 21,444

Calculator

Solution

The fourth proportional to 70,692, 106,038 and 21,444 is: 32,166

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,692 : 106,038 = 21,444 : x
  2. Step 2: Convert to fraction form
    70,692/106,038 = 21,444/x
  3. Step 3: Cross multiply
    70,692x = 106,038 × 21,444
  4. Step 4: Simplify right side
    70,692x = 2,273,878,872
  5. Step 5: Solve for x
    x = 2,273,878,872/70,692
  6. Step 6: Final answer
    x = 32,166

Related Problems

Find fourth proportional to 35,346, 53,019 and 10,722
Half scale
Find fourth proportional to 141,384, 212,076 and 42,888
Double scale
Find fourth proportional to 70,693, 106,039.50 and 21,445
Similar ratio
Find fourth proportional to 106,038, 159,057 and 32,166
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.