Home / 20,639.64-30,964.67-5,848.69

Finding the Fourth Proportional to 20,639.64, 30,964.67 and 5,848.69

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Solution

The fourth proportional to 20,639.64, 30,964.67 and 5,848.69 is: 8,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,639.64 : 30,964.67 = 5,848.69 : x
  2. Step 2: Convert to fraction form
    20,639.64/30,964.67 = 5,848.69/x
  3. Step 3: Cross multiply
    20,639.64x = 30,964.67 × 5,848.69
  4. Step 4: Simplify right side
    20,639.64x = 181,102,755.78
  5. Step 5: Solve for x
    x = 181,102,755.78/20,639.64
  6. Step 6: Final answer
    x = 8,774.51

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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.