Home / 20,548.87-30,798.51-10,003.08

Finding the Fourth Proportional to 20,548.87, 30,798.51 and 10,003.08

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Solution

The fourth proportional to 20,548.87, 30,798.51 and 10,003.08 is: 14,992.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,548.87 : 30,798.51 = 10,003.08 : x
  2. Step 2: Convert to fraction form
    20,548.87/30,798.51 = 10,003.08/x
  3. Step 3: Cross multiply
    20,548.87x = 30,798.51 × 10,003.08
  4. Step 4: Simplify right side
    20,548.87x = 308,079,996.92
  5. Step 5: Solve for x
    x = 308,079,996.92/20,548.87
  6. Step 6: Final answer
    x = 14,992.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.