Home / 20,725.48-28,605.60-14,365.54

Finding the Fourth Proportional to 20,725.48, 28,605.60 and 14,365.54

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Solution

The fourth proportional to 20,725.48, 28,605.60 and 14,365.54 is: 19,827.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,725.48 : 28,605.60 = 14,365.54 : x
  2. Step 2: Convert to fraction form
    20,725.48/28,605.60 = 14,365.54/x
  3. Step 3: Cross multiply
    20,725.48x = 28,605.60 × 14,365.54
  4. Step 4: Simplify right side
    20,725.48x = 410,934,891.02
  5. Step 5: Solve for x
    x = 410,934,891.02/20,725.48
  6. Step 6: Final answer
    x = 19,827.52

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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.