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Finding the Fourth Proportional to 28,901.84, 43,353.65 and 7,841.80

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Solution

The fourth proportional to 28,901.84, 43,353.65 and 7,841.80 is: 11,762.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,901.84 : 43,353.65 = 7,841.80 : x
  2. Step 2: Convert to fraction form
    28,901.84/43,353.65 = 7,841.80/x
  3. Step 3: Cross multiply
    28,901.84x = 43,353.65 × 7,841.80
  4. Step 4: Simplify right side
    28,901.84x = 339,970,652.57
  5. Step 5: Solve for x
    x = 339,970,652.57/28,901.84
  6. Step 6: Final answer
    x = 11,762.94

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1.5x scale

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.