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Finding the Fourth Proportional to 26,130, 39,169.08 and 14,448.72

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Solution

The fourth proportional to 26,130, 39,169.08 and 14,448.72 is: 21,658.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,130 : 39,169.08 = 14,448.72 : x
  2. Step 2: Convert to fraction form
    26,130/39,169.08 = 14,448.72/x
  3. Step 3: Cross multiply
    26,130x = 39,169.08 × 14,448.72
  4. Step 4: Simplify right side
    26,130x = 565,943,069.58
  5. Step 5: Solve for x
    x = 565,943,069.58/26,130
  6. Step 6: Final answer
    x = 21,658.75

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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.