Home / 39,589.68-54,634.32-21,684.32

Finding the Fourth Proportional to 39,589.68, 54,634.32 and 21,684.32

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Solution

The fourth proportional to 39,589.68, 54,634.32 and 21,684.32 is: 29,924.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,589.68 : 54,634.32 = 21,684.32 : x
  2. Step 2: Convert to fraction form
    39,589.68/54,634.32 = 21,684.32/x
  3. Step 3: Cross multiply
    39,589.68x = 54,634.32 × 21,684.32
  4. Step 4: Simplify right side
    39,589.68x = 1,184,708,077.86
  5. Step 5: Solve for x
    x = 1,184,708,077.86/39,589.68
  6. Step 6: Final answer
    x = 29,924.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.