Home / 28,906.28-39,890.88-16,331.32

Finding the Fourth Proportional to 28,906.28, 39,890.88 and 16,331.32

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Solution

The fourth proportional to 28,906.28, 39,890.88 and 16,331.32 is: 22,537.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,906.28 : 39,890.88 = 16,331.32 : x
  2. Step 2: Convert to fraction form
    28,906.28/39,890.88 = 16,331.32/x
  3. Step 3: Cross multiply
    28,906.28x = 39,890.88 × 16,331.32
  4. Step 4: Simplify right side
    28,906.28x = 651,470,726.36
  5. Step 5: Solve for x
    x = 651,470,726.36/28,906.28
  6. Step 6: Final answer
    x = 22,537.34

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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.