Home / 20,666.68-31,000.83-10,799.26

Finding the Fourth Proportional to 20,666.68, 31,000.83 and 10,799.26

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Solution

The fourth proportional to 20,666.68, 31,000.83 and 10,799.26 is: 16,199.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.68 : 31,000.83 = 10,799.26 : x
  2. Step 2: Convert to fraction form
    20,666.68/31,000.83 = 10,799.26/x
  3. Step 3: Cross multiply
    20,666.68x = 31,000.83 × 10,799.26
  4. Step 4: Simplify right side
    20,666.68x = 334,786,023.39
  5. Step 5: Solve for x
    x = 334,786,023.39/20,666.68
  6. Step 6: Final answer
    x = 16,199.31

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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.