Home / 20,941.44-31,415.64-9,708.06

Finding the Fourth Proportional to 20,941.44, 31,415.64 and 9,708.06

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Solution

The fourth proportional to 20,941.44, 31,415.64 and 9,708.06 is: 14,563.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,941.44 : 31,415.64 = 9,708.06 : x
  2. Step 2: Convert to fraction form
    20,941.44/31,415.64 = 9,708.06/x
  3. Step 3: Cross multiply
    20,941.44x = 31,415.64 × 9,708.06
  4. Step 4: Simplify right side
    20,941.44x = 304,984,918.06
  5. Step 5: Solve for x
    x = 304,984,918.06/20,941.44
  6. Step 6: Final answer
    x = 14,563.70

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1.5x scale

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.