Home / 28,273.80-42,410.70-7,497.30

Finding the Fourth Proportional to 28,273.80, 42,410.70 and 7,497.30

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Solution

The fourth proportional to 28,273.80, 42,410.70 and 7,497.30 is: 11,245.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,273.80 : 42,410.70 = 7,497.30 : x
  2. Step 2: Convert to fraction form
    28,273.80/42,410.70 = 7,497.30/x
  3. Step 3: Cross multiply
    28,273.80x = 42,410.70 × 7,497.30
  4. Step 4: Simplify right side
    28,273.80x = 317,965,741.11
  5. Step 5: Solve for x
    x = 317,965,741.11/28,273.80
  6. Step 6: Final answer
    x = 11,245.95

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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.