Home / 20,800.09-31,199.22-5,807.29

Finding the Fourth Proportional to 20,800.09, 31,199.22 and 5,807.29

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Solution

The fourth proportional to 20,800.09, 31,199.22 and 5,807.29 is: 8,710.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,800.09 : 31,199.22 = 5,807.29 : x
  2. Step 2: Convert to fraction form
    20,800.09/31,199.22 = 5,807.29/x
  3. Step 3: Cross multiply
    20,800.09x = 31,199.22 × 5,807.29
  4. Step 4: Simplify right side
    20,800.09x = 181,182,918.31
  5. Step 5: Solve for x
    x = 181,182,918.31/20,800.09
  6. Step 6: Final answer
    x = 8,710.68

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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.