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Finding the Fourth Proportional to 28,936, 43,373.76 and 13,363.84

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Solution

The fourth proportional to 28,936, 43,373.76 and 13,363.84 is: 20,031.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,936 : 43,373.76 = 13,363.84 : x
  2. Step 2: Convert to fraction form
    28,936/43,373.76 = 13,363.84/x
  3. Step 3: Cross multiply
    28,936x = 43,373.76 × 13,363.84
  4. Step 4: Simplify right side
    28,936x = 579,639,988.84
  5. Step 5: Solve for x
    x = 579,639,988.84/28,936
  6. Step 6: Final answer
    x = 20,031.79

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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.