Home / 28,222.40-42,317.60-10,692.80

Finding the Fourth Proportional to 28,222.40, 42,317.60 and 10,692.80

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Solution

The fourth proportional to 28,222.40, 42,317.60 and 10,692.80 is: 16,033.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,222.40 : 42,317.60 = 10,692.80 : x
  2. Step 2: Convert to fraction form
    28,222.40/42,317.60 = 10,692.80/x
  3. Step 3: Cross multiply
    28,222.40x = 42,317.60 × 10,692.80
  4. Step 4: Simplify right side
    28,222.40x = 452,493,633.28
  5. Step 5: Solve for x
    x = 452,493,633.28/28,222.40
  6. Step 6: Final answer
    x = 16,033.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.