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Finding the Fourth Proportional to 28,230.54, 42,347.61 and 7,453.50

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Solution

The fourth proportional to 28,230.54, 42,347.61 and 7,453.50 is: 11,180.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,230.54 : 42,347.61 = 7,453.50 : x
  2. Step 2: Convert to fraction form
    28,230.54/42,347.61 = 7,453.50/x
  3. Step 3: Cross multiply
    28,230.54x = 42,347.61 × 7,453.50
  4. Step 4: Simplify right side
    28,230.54x = 315,637,911.14
  5. Step 5: Solve for x
    x = 315,637,911.14/28,230.54
  6. Step 6: Final answer
    x = 11,180.73

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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.