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Finding the Fourth Proportional to 28,604, 42,929.04 and 14,756.96

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Solution

The fourth proportional to 28,604, 42,929.04 and 14,756.96 is: 22,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,604 : 42,929.04 = 14,756.96 : x
  2. Step 2: Convert to fraction form
    28,604/42,929.04 = 14,756.96/x
  3. Step 3: Cross multiply
    28,604x = 42,929.04 × 14,756.96
  4. Step 4: Simplify right side
    28,604x = 633,502,126.12
  5. Step 5: Solve for x
    x = 633,502,126.12/28,604
  6. Step 6: Final answer
    x = 22,147.33

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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.