Home / 20,435.98-28,201.80-11,483.50

Finding the Fourth Proportional to 20,435.98, 28,201.80 and 11,483.50

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Solution

The fourth proportional to 20,435.98, 28,201.80 and 11,483.50 is: 15,847.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,435.98 : 28,201.80 = 11,483.50 : x
  2. Step 2: Convert to fraction form
    20,435.98/28,201.80 = 11,483.50/x
  3. Step 3: Cross multiply
    20,435.98x = 28,201.80 × 11,483.50
  4. Step 4: Simplify right side
    20,435.98x = 323,855,370.30
  5. Step 5: Solve for x
    x = 323,855,370.30/20,435.98
  6. Step 6: Final answer
    x = 15,847.31

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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.