Home / 20,646.72-30,928.16-9,537.98

Finding the Fourth Proportional to 20,646.72, 30,928.16 and 9,537.98

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Solution

The fourth proportional to 20,646.72, 30,928.16 and 9,537.98 is: 14,287.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,646.72 : 30,928.16 = 9,537.98 : x
  2. Step 2: Convert to fraction form
    20,646.72/30,928.16 = 9,537.98/x
  3. Step 3: Cross multiply
    20,646.72x = 30,928.16 × 9,537.98
  4. Step 4: Simplify right side
    20,646.72x = 294,992,040.72
  5. Step 5: Solve for x
    x = 294,992,040.72/20,646.72
  6. Step 6: Final answer
    x = 14,287.60

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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.