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Finding the Fourth Proportional to 25,329, 38,004.63 and 13,479.98

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Solution

The fourth proportional to 25,329, 38,004.63 and 13,479.98 is: 20,225.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,329 : 38,004.63 = 13,479.98 : x
  2. Step 2: Convert to fraction form
    25,329/38,004.63 = 13,479.98/x
  3. Step 3: Cross multiply
    25,329x = 38,004.63 × 13,479.98
  4. Step 4: Simplify right side
    25,329x = 512,301,652.31
  5. Step 5: Solve for x
    x = 512,301,652.31/25,329
  6. Step 6: Final answer
    x = 20,225.89

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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.