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Finding the Fourth Proportional to 16,390.40, 24,559.20 and 14,835.20

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Solution

The fourth proportional to 16,390.40, 24,559.20 and 14,835.20 is: 22,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,390.40 : 24,559.20 = 14,835.20 : x
  2. Step 2: Convert to fraction form
    16,390.40/24,559.20 = 14,835.20/x
  3. Step 3: Cross multiply
    16,390.40x = 24,559.20 × 14,835.20
  4. Step 4: Simplify right side
    16,390.40x = 364,340,643.84
  5. Step 5: Solve for x
    x = 364,340,643.84/16,390.40
  6. Step 6: Final answer
    x = 22,228.90

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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.