Home / 28,433.91-39,194.15-19,465.86

Finding the Fourth Proportional to 28,433.91, 39,194.15 and 19,465.86

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Solution

The fourth proportional to 28,433.91, 39,194.15 and 19,465.86 is: 26,832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,433.91 : 39,194.15 = 19,465.86 : x
  2. Step 2: Convert to fraction form
    28,433.91/39,194.15 = 19,465.86/x
  3. Step 3: Cross multiply
    28,433.91x = 39,194.15 × 19,465.86
  4. Step 4: Simplify right side
    28,433.91x = 762,947,739.39
  5. Step 5: Solve for x
    x = 762,947,739.39/28,433.91
  6. Step 6: Final answer
    x = 26,832.32

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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.