Home / 28,887.32-43,302.26-20,103.77

Finding the Fourth Proportional to 28,887.32, 43,302.26 and 20,103.77

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Solution

The fourth proportional to 28,887.32, 43,302.26 and 20,103.77 is: 30,135.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,887.32 : 43,302.26 = 20,103.77 : x
  2. Step 2: Convert to fraction form
    28,887.32/43,302.26 = 20,103.77/x
  3. Step 3: Cross multiply
    28,887.32x = 43,302.26 × 20,103.77
  4. Step 4: Simplify right side
    28,887.32x = 870,538,834.04
  5. Step 5: Solve for x
    x = 870,538,834.04/28,887.32
  6. Step 6: Final answer
    x = 30,135.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.