Home / 28,026.84-38,692.88-18,608.28

Finding the Fourth Proportional to 28,026.84, 38,692.88 and 18,608.28

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Solution

The fourth proportional to 28,026.84, 38,692.88 and 18,608.28 is: 25,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,026.84 : 38,692.88 = 18,608.28 : x
  2. Step 2: Convert to fraction form
    28,026.84/38,692.88 = 18,608.28/x
  3. Step 3: Cross multiply
    28,026.84x = 38,692.88 × 18,608.28
  4. Step 4: Simplify right side
    28,026.84x = 720,007,945.05
  5. Step 5: Solve for x
    x = 720,007,945.05/28,026.84
  6. Step 6: Final answer
    x = 25,689.94

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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.