Home / 19,854.40-29,793.93-12,372.64

Finding the Fourth Proportional to 19,854.40, 29,793.93 and 12,372.64

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Solution

The fourth proportional to 19,854.40, 29,793.93 and 12,372.64 is: 18,566.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,854.40 : 29,793.93 = 12,372.64 : x
  2. Step 2: Convert to fraction form
    19,854.40/29,793.93 = 12,372.64/x
  3. Step 3: Cross multiply
    19,854.40x = 29,793.93 × 12,372.64
  4. Step 4: Simplify right side
    19,854.40x = 368,629,495.59
  5. Step 5: Solve for x
    x = 368,629,495.59/19,854.40
  6. Step 6: Final answer
    x = 18,566.64

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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.