Home / 20,960.60-28,924.94-11,529.08

Finding the Fourth Proportional to 20,960.60, 28,924.94 and 11,529.08

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Solution

The fourth proportional to 20,960.60, 28,924.94 and 11,529.08 is: 15,909.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,960.60 : 28,924.94 = 11,529.08 : x
  2. Step 2: Convert to fraction form
    20,960.60/28,924.94 = 11,529.08/x
  3. Step 3: Cross multiply
    20,960.60x = 28,924.94 × 11,529.08
  4. Step 4: Simplify right side
    20,960.60x = 333,477,947.26
  5. Step 5: Solve for x
    x = 333,477,947.26/20,960.60
  6. Step 6: Final answer
    x = 15,909.75

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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.