Home / 28,631.36-39,512.28-16,692.68

Finding the Fourth Proportional to 28,631.36, 39,512.28 and 16,692.68

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Solution

The fourth proportional to 28,631.36, 39,512.28 and 16,692.68 is: 23,036.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,631.36 : 39,512.28 = 16,692.68 : x
  2. Step 2: Convert to fraction form
    28,631.36/39,512.28 = 16,692.68/x
  3. Step 3: Cross multiply
    28,631.36x = 39,512.28 × 16,692.68
  4. Step 4: Simplify right side
    28,631.36x = 659,565,846.11
  5. Step 5: Solve for x
    x = 659,565,846.11/28,631.36
  6. Step 6: Final answer
    x = 23,036.48

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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.