Home / 19,485.60-29,228.40-11,293.60

Finding the Fourth Proportional to 19,485.60, 29,228.40 and 11,293.60

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Solution

The fourth proportional to 19,485.60, 29,228.40 and 11,293.60 is: 16,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,485.60 : 29,228.40 = 11,293.60 : x
  2. Step 2: Convert to fraction form
    19,485.60/29,228.40 = 11,293.60/x
  3. Step 3: Cross multiply
    19,485.60x = 29,228.40 × 11,293.60
  4. Step 4: Simplify right side
    19,485.60x = 330,093,858.24
  5. Step 5: Solve for x
    x = 330,093,858.24/19,485.60
  6. Step 6: Final answer
    x = 16,940.40

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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.