Home / 28,344.32-42,514.95-8,621.33

Finding the Fourth Proportional to 28,344.32, 42,514.95 and 8,621.33

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Solution

The fourth proportional to 28,344.32, 42,514.95 and 8,621.33 is: 12,931.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,344.32 : 42,514.95 = 8,621.33 : x
  2. Step 2: Convert to fraction form
    28,344.32/42,514.95 = 8,621.33/x
  3. Step 3: Cross multiply
    28,344.32x = 42,514.95 × 8,621.33
  4. Step 4: Simplify right side
    28,344.32x = 366,535,413.88
  5. Step 5: Solve for x
    x = 366,535,413.88/28,344.32
  6. Step 6: Final answer
    x = 12,931.53

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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.