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Finding the Fourth Proportional to 36,387, 54,580.03 and 12,694.50

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Solution

The fourth proportional to 36,387, 54,580.03 and 12,694.50 is: 19,041.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,387 : 54,580.03 = 12,694.50 : x
  2. Step 2: Convert to fraction form
    36,387/54,580.03 = 12,694.50/x
  3. Step 3: Cross multiply
    36,387x = 54,580.03 × 12,694.50
  4. Step 4: Simplify right side
    36,387x = 692,866,159.10
  5. Step 5: Solve for x
    x = 692,866,159.10/36,387
  6. Step 6: Final answer
    x = 19,041.59

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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.