Home / 19,904-29,856-5,312

Finding the Fourth Proportional to 19,904, 29,856 and 5,312

Calculator

Solution

The fourth proportional to 19,904, 29,856 and 5,312 is: 7,968

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,904 : 29,856 = 5,312 : x
  2. Step 2: Convert to fraction form
    19,904/29,856 = 5,312/x
  3. Step 3: Cross multiply
    19,904x = 29,856 × 5,312
  4. Step 4: Simplify right side
    19,904x = 158,595,072
  5. Step 5: Solve for x
    x = 158,595,072/19,904
  6. Step 6: Final answer
    x = 7,968

Related Problems

Find fourth proportional to 9,952, 14,928 and 2,656
Half scale
Find fourth proportional to 39,808, 59,712 and 10,624
Double scale
Find fourth proportional to 19,905, 29,857.50 and 5,313
Similar ratio
Find fourth proportional to 29,856, 44,784 and 7,968
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.