Home / 20,410.21-28,167.33-11,458.32

Finding the Fourth Proportional to 20,410.21, 28,167.33 and 11,458.32

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Solution

The fourth proportional to 20,410.21, 28,167.33 and 11,458.32 is: 15,813.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,410.21 : 28,167.33 = 11,458.32 : x
  2. Step 2: Convert to fraction form
    20,410.21/28,167.33 = 11,458.32/x
  3. Step 3: Cross multiply
    20,410.21x = 28,167.33 × 11,458.32
  4. Step 4: Simplify right side
    20,410.21x = 322,750,280.69
  5. Step 5: Solve for x
    x = 322,750,280.69/20,410.21
  6. Step 6: Final answer
    x = 15,813.18

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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.