Home / 20,842.04-28,761.36-11,410.04

Finding the Fourth Proportional to 20,842.04, 28,761.36 and 11,410.04

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Solution

The fourth proportional to 20,842.04, 28,761.36 and 11,410.04 is: 15,745.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,842.04 : 28,761.36 = 11,410.04 : x
  2. Step 2: Convert to fraction form
    20,842.04/28,761.36 = 11,410.04/x
  3. Step 3: Cross multiply
    20,842.04x = 28,761.36 × 11,410.04
  4. Step 4: Simplify right side
    20,842.04x = 328,168,268.05
  5. Step 5: Solve for x
    x = 328,168,268.05/20,842.04
  6. Step 6: Final answer
    x = 15,745.50

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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.