Home / 48,485.76-72,730.32-13,428

Finding the Fourth Proportional to 48,485.76, 72,730.32 and 13,428

Calculator

Solution

The fourth proportional to 48,485.76, 72,730.32 and 13,428 is: 20,142.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,485.76 : 72,730.32 = 13,428 : x
  2. Step 2: Convert to fraction form
    48,485.76/72,730.32 = 13,428/x
  3. Step 3: Cross multiply
    48,485.76x = 72,730.32 × 13,428
  4. Step 4: Simplify right side
    48,485.76x = 976,622,736.96
  5. Step 5: Solve for x
    x = 976,622,736.96/48,485.76
  6. Step 6: Final answer
    x = 20,142.47

Related Problems

Find fourth proportional to 24,242.88, 36,365.16 and 6,714
Half scale
Find fourth proportional to 96,971.52, 145,460.64 and 26,856
Double scale
Find fourth proportional to 48,486.76, 72,731.82 and 13,429
Similar ratio
Find fourth proportional to 72,728.64, 109,095.48 and 20,142
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.