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Finding the Fourth Proportional to 17,624.40, 26,436.60 and 13,477.20

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Solution

The fourth proportional to 17,624.40, 26,436.60 and 13,477.20 is: 20,215.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,624.40 : 26,436.60 = 13,477.20 : x
  2. Step 2: Convert to fraction form
    17,624.40/26,436.60 = 13,477.20/x
  3. Step 3: Cross multiply
    17,624.40x = 26,436.60 × 13,477.20
  4. Step 4: Simplify right side
    17,624.40x = 356,291,345.52
  5. Step 5: Solve for x
    x = 356,291,345.52/17,624.40
  6. Step 6: Final answer
    x = 20,215.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.