Home / 20,237.60-27,927.77-11,285.21

Finding the Fourth Proportional to 20,237.60, 27,927.77 and 11,285.21

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Solution

The fourth proportional to 20,237.60, 27,927.77 and 11,285.21 is: 15,573.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,237.60 : 27,927.77 = 11,285.21 : x
  2. Step 2: Convert to fraction form
    20,237.60/27,927.77 = 11,285.21/x
  3. Step 3: Cross multiply
    20,237.60x = 27,927.77 × 11,285.21
  4. Step 4: Simplify right side
    20,237.60x = 315,170,762.68
  5. Step 5: Solve for x
    x = 315,170,762.68/20,237.60
  6. Step 6: Final answer
    x = 15,573.52

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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.