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Finding the Fourth Proportional to 25,550.40, 38,312.79 and 16,209.18

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Solution

The fourth proportional to 25,550.40, 38,312.79 and 16,209.18 is: 24,305.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,550.40 : 38,312.79 = 16,209.18 : x
  2. Step 2: Convert to fraction form
    25,550.40/38,312.79 = 16,209.18/x
  3. Step 3: Cross multiply
    25,550.40x = 38,312.79 × 16,209.18
  4. Step 4: Simplify right side
    25,550.40x = 621,018,909.41
  5. Step 5: Solve for x
    x = 621,018,909.41/25,550.40
  6. Step 6: Final answer
    x = 24,305.64

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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.