Home / 19,917.28-27,485.84-11,533.60

Finding the Fourth Proportional to 19,917.28, 27,485.84 and 11,533.60

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Solution

The fourth proportional to 19,917.28, 27,485.84 and 11,533.60 is: 15,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,917.28 : 27,485.84 = 11,533.60 : x
  2. Step 2: Convert to fraction form
    19,917.28/27,485.84 = 11,533.60/x
  3. Step 3: Cross multiply
    19,917.28x = 27,485.84 × 11,533.60
  4. Step 4: Simplify right side
    19,917.28x = 317,010,684.22
  5. Step 5: Solve for x
    x = 317,010,684.22/19,917.28
  6. Step 6: Final answer
    x = 15,916.36

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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.