Home / 20,009.89-29,998.63-8,331.85

Finding the Fourth Proportional to 20,009.89, 29,998.63 and 8,331.85

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Solution

The fourth proportional to 20,009.89, 29,998.63 and 8,331.85 is: 12,491.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,009.89 : 29,998.63 = 8,331.85 : x
  2. Step 2: Convert to fraction form
    20,009.89/29,998.63 = 8,331.85/x
  3. Step 3: Cross multiply
    20,009.89x = 29,998.63 × 8,331.85
  4. Step 4: Simplify right side
    20,009.89x = 249,944,085.37
  5. Step 5: Solve for x
    x = 249,944,085.37/20,009.89
  6. Step 6: Final answer
    x = 12,491.03

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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.