Home / 28,172.50-42,242.95-19,297.85

Finding the Fourth Proportional to 28,172.50, 42,242.95 and 19,297.85

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Solution

The fourth proportional to 28,172.50, 42,242.95 and 19,297.85 is: 28,935.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,172.50 : 42,242.95 = 19,297.85 : x
  2. Step 2: Convert to fraction form
    28,172.50/42,242.95 = 19,297.85/x
  3. Step 3: Cross multiply
    28,172.50x = 42,242.95 × 19,297.85
  4. Step 4: Simplify right side
    28,172.50x = 815,198,112.66
  5. Step 5: Solve for x
    x = 815,198,112.66/28,172.50
  6. Step 6: Final answer
    x = 28,935.95

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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.