Home / 20,962.56-28,927.87-12,015.33

Finding the Fourth Proportional to 20,962.56, 28,927.87 and 12,015.33

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Solution

The fourth proportional to 20,962.56, 28,927.87 and 12,015.33 is: 16,580.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,962.56 : 28,927.87 = 12,015.33 : x
  2. Step 2: Convert to fraction form
    20,962.56/28,927.87 = 12,015.33/x
  3. Step 3: Cross multiply
    20,962.56x = 28,927.87 × 12,015.33
  4. Step 4: Simplify right side
    20,962.56x = 347,577,844.17
  5. Step 5: Solve for x
    x = 347,577,844.17/20,962.56
  6. Step 6: Final answer
    x = 16,580.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.