Home / 18,780.84-28,108.38-18,532.20

Finding the Fourth Proportional to 18,780.84, 28,108.38 and 18,532.20

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Solution

The fourth proportional to 18,780.84, 28,108.38 and 18,532.20 is: 27,736.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,780.84 : 28,108.38 = 18,532.20 : x
  2. Step 2: Convert to fraction form
    18,780.84/28,108.38 = 18,532.20/x
  3. Step 3: Cross multiply
    18,780.84x = 28,108.38 × 18,532.20
  4. Step 4: Simplify right side
    18,780.84x = 520,910,119.84
  5. Step 5: Solve for x
    x = 520,910,119.84/18,780.84
  6. Step 6: Final answer
    x = 27,736.25

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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.