Home / 38,866.58-58,285.58-13,899.86

Finding the Fourth Proportional to 38,866.58, 58,285.58 and 13,899.86

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Solution

The fourth proportional to 38,866.58, 58,285.58 and 13,899.86 is: 20,844.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,866.58 : 58,285.58 = 13,899.86 : x
  2. Step 2: Convert to fraction form
    38,866.58/58,285.58 = 13,899.86/x
  3. Step 3: Cross multiply
    38,866.58x = 58,285.58 × 13,899.86
  4. Step 4: Simplify right side
    38,866.58x = 810,161,041.09
  5. Step 5: Solve for x
    x = 810,161,041.09/38,866.58
  6. Step 6: Final answer
    x = 20,844.67

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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.