Home / 20,295.25-28,006.89-11,342.54

Finding the Fourth Proportional to 20,295.25, 28,006.89 and 11,342.54

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Solution

The fourth proportional to 20,295.25, 28,006.89 and 11,342.54 is: 15,652.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295.25 : 28,006.89 = 11,342.54 : x
  2. Step 2: Convert to fraction form
    20,295.25/28,006.89 = 11,342.54/x
  3. Step 3: Cross multiply
    20,295.25x = 28,006.89 × 11,342.54
  4. Step 4: Simplify right side
    20,295.25x = 317,669,270.10
  5. Step 5: Solve for x
    x = 317,669,270.10/20,295.25
  6. Step 6: Final answer
    x = 15,652.40

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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.