Home / 27,281.05-40,907.73-12,477.28

Finding the Fourth Proportional to 27,281.05, 40,907.73 and 12,477.28

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Solution

The fourth proportional to 27,281.05, 40,907.73 and 12,477.28 is: 18,709.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281.05 : 40,907.73 = 12,477.28 : x
  2. Step 2: Convert to fraction form
    27,281.05/40,907.73 = 12,477.28/x
  3. Step 3: Cross multiply
    27,281.05x = 40,907.73 × 12,477.28
  4. Step 4: Simplify right side
    27,281.05x = 510,417,201.37
  5. Step 5: Solve for x
    x = 510,417,201.37/27,281.05
  6. Step 6: Final answer
    x = 18,709.59

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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.