Home / 15,991.47-23,983.56-4,305.60

Finding the Fourth Proportional to 15,991.47, 23,983.56 and 4,305.60

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Solution

The fourth proportional to 15,991.47, 23,983.56 and 4,305.60 is: 6,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,991.47 : 23,983.56 = 4,305.60 : x
  2. Step 2: Convert to fraction form
    15,991.47/23,983.56 = 4,305.60/x
  3. Step 3: Cross multiply
    15,991.47x = 23,983.56 × 4,305.60
  4. Step 4: Simplify right side
    15,991.47x = 103,263,615.94
  5. Step 5: Solve for x
    x = 103,263,615.94/15,991.47
  6. Step 6: Final answer
    x = 6,457.42

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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.