Home / 20,381.04-30,556.89-10,000.08

Finding the Fourth Proportional to 20,381.04, 30,556.89 and 10,000.08

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Solution

The fourth proportional to 20,381.04, 30,556.89 and 10,000.08 is: 14,992.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,381.04 : 30,556.89 = 10,000.08 : x
  2. Step 2: Convert to fraction form
    20,381.04/30,556.89 = 10,000.08/x
  3. Step 3: Cross multiply
    20,381.04x = 30,556.89 × 10,000.08
  4. Step 4: Simplify right side
    20,381.04x = 305,571,344.55
  5. Step 5: Solve for x
    x = 305,571,344.55/20,381.04
  6. Step 6: Final answer
    x = 14,992.92

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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.