Home / 28,406.99-39,201.84-16,304.28

Finding the Fourth Proportional to 28,406.99, 39,201.84 and 16,304.28

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Solution

The fourth proportional to 28,406.99, 39,201.84 and 16,304.28 is: 22,500.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,406.99 : 39,201.84 = 16,304.28 : x
  2. Step 2: Convert to fraction form
    28,406.99/39,201.84 = 16,304.28/x
  3. Step 3: Cross multiply
    28,406.99x = 39,201.84 × 16,304.28
  4. Step 4: Simplify right side
    28,406.99x = 639,157,775.88
  5. Step 5: Solve for x
    x = 639,157,775.88/28,406.99
  6. Step 6: Final answer
    x = 22,500.02

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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.