Home / 20,550.55-28,359.71-11,598.03

Finding the Fourth Proportional to 20,550.55, 28,359.71 and 11,598.03

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Solution

The fourth proportional to 20,550.55, 28,359.71 and 11,598.03 is: 16,005.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.55 : 28,359.71 = 11,598.03 : x
  2. Step 2: Convert to fraction form
    20,550.55/28,359.71 = 11,598.03/x
  3. Step 3: Cross multiply
    20,550.55x = 28,359.71 × 11,598.03
  4. Step 4: Simplify right side
    20,550.55x = 328,916,767.37
  5. Step 5: Solve for x
    x = 328,916,767.37/20,550.55
  6. Step 6: Final answer
    x = 16,005.25

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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.