Home / 20,482.62-28,260.36-11,529.60

Finding the Fourth Proportional to 20,482.62, 28,260.36 and 11,529.60

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Solution

The fourth proportional to 20,482.62, 28,260.36 and 11,529.60 is: 15,907.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,482.62 : 28,260.36 = 11,529.60 : x
  2. Step 2: Convert to fraction form
    20,482.62/28,260.36 = 11,529.60/x
  3. Step 3: Cross multiply
    20,482.62x = 28,260.36 × 11,529.60
  4. Step 4: Simplify right side
    20,482.62x = 325,830,646.66
  5. Step 5: Solve for x
    x = 325,830,646.66/20,482.62
  6. Step 6: Final answer
    x = 15,907.66

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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.