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Finding the Fourth Proportional to 28,246.08, 42,323.04 and 14,376

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Solution

The fourth proportional to 28,246.08, 42,323.04 and 14,376 is: 21,540.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246.08 : 42,323.04 = 14,376 : x
  2. Step 2: Convert to fraction form
    28,246.08/42,323.04 = 14,376/x
  3. Step 3: Cross multiply
    28,246.08x = 42,323.04 × 14,376
  4. Step 4: Simplify right side
    28,246.08x = 608,436,023.04
  5. Step 5: Solve for x
    x = 608,436,023.04/28,246.08
  6. Step 6: Final answer
    x = 21,540.55

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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.