Home / 20,550.96-28,359.72-11,598.36

Finding the Fourth Proportional to 20,550.96, 28,359.72 and 11,598.36

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Solution

The fourth proportional to 20,550.96, 28,359.72 and 11,598.36 is: 16,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,550.96 : 28,359.72 = 11,598.36 : x
  2. Step 2: Convert to fraction form
    20,550.96/28,359.72 = 11,598.36/x
  3. Step 3: Cross multiply
    20,550.96x = 28,359.72 × 11,598.36
  4. Step 4: Simplify right side
    20,550.96x = 328,926,242.06
  5. Step 5: Solve for x
    x = 328,926,242.06/20,550.96
  6. Step 6: Final answer
    x = 16,005.40

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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.