Home / 28,977.32-43,460.82-13,178.63

Finding the Fourth Proportional to 28,977.32, 43,460.82 and 13,178.63

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Solution

The fourth proportional to 28,977.32, 43,460.82 and 13,178.63 is: 19,765.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977.32 : 43,460.82 = 13,178.63 : x
  2. Step 2: Convert to fraction form
    28,977.32/43,460.82 = 13,178.63/x
  3. Step 3: Cross multiply
    28,977.32x = 43,460.82 × 13,178.63
  4. Step 4: Simplify right side
    28,977.32x = 572,753,848.97
  5. Step 5: Solve for x
    x = 572,753,848.97/28,977.32
  6. Step 6: Final answer
    x = 19,765.59

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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.