Home / 20,548.62-28,358.15-12,482.37

Finding the Fourth Proportional to 20,548.62, 28,358.15 and 12,482.37

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Solution

The fourth proportional to 20,548.62, 28,358.15 and 12,482.37 is: 17,226.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.62 : 28,358.15 = 12,482.37 : x
  2. Step 2: Convert to fraction form
    20,548.62/28,358.15 = 12,482.37/x
  3. Step 3: Cross multiply
    20,548.62x = 28,358.15 × 12,482.37
  4. Step 4: Simplify right side
    20,548.62x = 353,976,858.40
  5. Step 5: Solve for x
    x = 353,976,858.40/20,548.62
  6. Step 6: Final answer
    x = 17,226.31

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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.