Home / 28,618.92-42,911.64-13,028.04

Finding the Fourth Proportional to 28,618.92, 42,911.64 and 13,028.04

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Solution

The fourth proportional to 28,618.92, 42,911.64 and 13,028.04 is: 19,534.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,618.92 : 42,911.64 = 13,028.04 : x
  2. Step 2: Convert to fraction form
    28,618.92/42,911.64 = 13,028.04/x
  3. Step 3: Cross multiply
    28,618.92x = 42,911.64 × 13,028.04
  4. Step 4: Simplify right side
    28,618.92x = 559,054,562.39
  5. Step 5: Solve for x
    x = 559,054,562.39/28,618.92
  6. Step 6: Final answer
    x = 19,534.44

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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.