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Finding the Fourth Proportional to 14,936.40, 22,368.15 and 14,280.30

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Solution

The fourth proportional to 14,936.40, 22,368.15 and 14,280.30 is: 21,385.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,936.40 : 22,368.15 = 14,280.30 : x
  2. Step 2: Convert to fraction form
    14,936.40/22,368.15 = 14,280.30/x
  3. Step 3: Cross multiply
    14,936.40x = 22,368.15 × 14,280.30
  4. Step 4: Simplify right side
    14,936.40x = 319,423,892.45
  5. Step 5: Solve for x
    x = 319,423,892.45/14,936.40
  6. Step 6: Final answer
    x = 21,385.60

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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.