Home / 28,825.16-39,777.92-16,078.72

Finding the Fourth Proportional to 28,825.16, 39,777.92 and 16,078.72

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Solution

The fourth proportional to 28,825.16, 39,777.92 and 16,078.72 is: 22,188.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,825.16 : 39,777.92 = 16,078.72 : x
  2. Step 2: Convert to fraction form
    28,825.16/39,777.92 = 16,078.72/x
  3. Step 3: Cross multiply
    28,825.16x = 39,777.92 × 16,078.72
  4. Step 4: Simplify right side
    28,825.16x = 639,578,037.86
  5. Step 5: Solve for x
    x = 639,578,037.86/28,825.16
  6. Step 6: Final answer
    x = 22,188.19

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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.