Home / 28,709.18-43,058.90-7,932.68

Finding the Fourth Proportional to 28,709.18, 43,058.90 and 7,932.68

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Solution

The fourth proportional to 28,709.18, 43,058.90 and 7,932.68 is: 11,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,709.18 : 43,058.90 = 7,932.68 : x
  2. Step 2: Convert to fraction form
    28,709.18/43,058.90 = 7,932.68/x
  3. Step 3: Cross multiply
    28,709.18x = 43,058.90 × 7,932.68
  4. Step 4: Simplify right side
    28,709.18x = 341,572,474.85
  5. Step 5: Solve for x
    x = 341,572,474.85/28,709.18
  6. Step 6: Final answer
    x = 11,897.67

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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.