Home / 31,728.90-47,595.78-8,355

Finding the Fourth Proportional to 31,728.90, 47,595.78 and 8,355

Calculator

Solution

The fourth proportional to 31,728.90, 47,595.78 and 8,355 is: 12,533.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,728.90 : 47,595.78 = 8,355 : x
  2. Step 2: Convert to fraction form
    31,728.90/47,595.78 = 8,355/x
  3. Step 3: Cross multiply
    31,728.90x = 47,595.78 × 8,355
  4. Step 4: Simplify right side
    31,728.90x = 397,662,741.90
  5. Step 5: Solve for x
    x = 397,662,741.90/31,728.90
  6. Step 6: Final answer
    x = 12,533.14

Related Problems

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.