Home / 20,526.26-30,789.81-9,429.93

Finding the Fourth Proportional to 20,526.26, 30,789.81 and 9,429.93

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Solution

The fourth proportional to 20,526.26, 30,789.81 and 9,429.93 is: 14,145.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,526.26 : 30,789.81 = 9,429.93 : x
  2. Step 2: Convert to fraction form
    20,526.26/30,789.81 = 9,429.93/x
  3. Step 3: Cross multiply
    20,526.26x = 30,789.81 × 9,429.93
  4. Step 4: Simplify right side
    20,526.26x = 290,345,753.01
  5. Step 5: Solve for x
    x = 290,345,753.01/20,526.26
  6. Step 6: Final answer
    x = 14,145.09

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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.