Home / 28,465.08-42,692.78-7,683.72

Finding the Fourth Proportional to 28,465.08, 42,692.78 and 7,683.72

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Solution

The fourth proportional to 28,465.08, 42,692.78 and 7,683.72 is: 11,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,465.08 : 42,692.78 = 7,683.72 : x
  2. Step 2: Convert to fraction form
    28,465.08/42,692.78 = 7,683.72/x
  3. Step 3: Cross multiply
    28,465.08x = 42,692.78 × 7,683.72
  4. Step 4: Simplify right side
    28,465.08x = 328,039,367.54
  5. Step 5: Solve for x
    x = 328,039,367.54/28,465.08
  6. Step 6: Final answer
    x = 11,524.27

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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.