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Finding the Fourth Proportional to 28,425.83, 39,230.33 and 16,328.00

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Solution

The fourth proportional to 28,425.83, 39,230.33 and 16,328.00 is: 22,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,425.83 : 39,230.33 = 16,328.00 : x
  2. Step 2: Convert to fraction form
    28,425.83/39,230.33 = 16,328.00/x
  3. Step 3: Cross multiply
    28,425.83x = 39,230.33 × 16,328.00
  4. Step 4: Simplify right side
    28,425.83x = 640,552,844.68
  5. Step 5: Solve for x
    x = 640,552,844.68/28,425.83
  6. Step 6: Final answer
    x = 22,534.19

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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.