Home / 20,685.03-28,550.42-11,737.77

Finding the Fourth Proportional to 20,685.03, 28,550.42 and 11,737.77

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Solution

The fourth proportional to 20,685.03, 28,550.42 and 11,737.77 is: 16,201.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,685.03 : 28,550.42 = 11,737.77 : x
  2. Step 2: Convert to fraction form
    20,685.03/28,550.42 = 11,737.77/x
  3. Step 3: Cross multiply
    20,685.03x = 28,550.42 × 11,737.77
  4. Step 4: Simplify right side
    20,685.03x = 335,118,263.36
  5. Step 5: Solve for x
    x = 335,118,263.36/20,685.03
  6. Step 6: Final answer
    x = 16,201.00

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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.