Home / 28,500.84-42,759.90-20,196.95

Finding the Fourth Proportional to 28,500.84, 42,759.90 and 20,196.95

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Solution

The fourth proportional to 28,500.84, 42,759.90 and 20,196.95 is: 30,301.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,500.84 : 42,759.90 = 20,196.95 : x
  2. Step 2: Convert to fraction form
    28,500.84/42,759.90 = 20,196.95/x
  3. Step 3: Cross multiply
    28,500.84x = 42,759.90 × 20,196.95
  4. Step 4: Simplify right side
    28,500.84x = 863,619,348.51
  5. Step 5: Solve for x
    x = 863,619,348.51/28,500.84
  6. Step 6: Final answer
    x = 30,301.54

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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.