Home / 20,558.57-28,396.13-14,884.33

Finding the Fourth Proportional to 20,558.57, 28,396.13 and 14,884.33

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Solution

The fourth proportional to 20,558.57, 28,396.13 and 14,884.33 is: 20,558.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,558.57 : 28,396.13 = 14,884.33 : x
  2. Step 2: Convert to fraction form
    20,558.57/28,396.13 = 14,884.33/x
  3. Step 3: Cross multiply
    20,558.57x = 28,396.13 × 14,884.33
  4. Step 4: Simplify right side
    20,558.57x = 422,657,224.23
  5. Step 5: Solve for x
    x = 422,657,224.23/20,558.57
  6. Step 6: Final answer
    x = 20,558.69

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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.