Home / 28,608.03-42,912.32-12,813.84

Finding the Fourth Proportional to 28,608.03, 42,912.32 and 12,813.84

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Solution

The fourth proportional to 28,608.03, 42,912.32 and 12,813.84 is: 19,220.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,608.03 : 42,912.32 = 12,813.84 : x
  2. Step 2: Convert to fraction form
    28,608.03/42,912.32 = 12,813.84/x
  3. Step 3: Cross multiply
    28,608.03x = 42,912.32 × 12,813.84
  4. Step 4: Simplify right side
    28,608.03x = 549,871,538.44
  5. Step 5: Solve for x
    x = 549,871,538.44/28,608.03
  6. Step 6: Final answer
    x = 19,220.88

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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.