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Finding the Fourth Proportional to 28,362.68, 42,542.97 and 11,495.10

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Solution

The fourth proportional to 28,362.68, 42,542.97 and 11,495.10 is: 17,242.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,362.68 : 42,542.97 = 11,495.10 : x
  2. Step 2: Convert to fraction form
    28,362.68/42,542.97 = 11,495.10/x
  3. Step 3: Cross multiply
    28,362.68x = 42,542.97 × 11,495.10
  4. Step 4: Simplify right side
    28,362.68x = 489,035,694.45
  5. Step 5: Solve for x
    x = 489,035,694.45/28,362.68
  6. Step 6: Final answer
    x = 17,242.22

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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.