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Finding the Fourth Proportional to 30,365.52, 45,553.11 and 12,835.50

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Solution

The fourth proportional to 30,365.52, 45,553.11 and 12,835.50 is: 19,255.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,365.52 : 45,553.11 = 12,835.50 : x
  2. Step 2: Convert to fraction form
    30,365.52/45,553.11 = 12,835.50/x
  3. Step 3: Cross multiply
    30,365.52x = 45,553.11 × 12,835.50
  4. Step 4: Simplify right side
    30,365.52x = 584,696,943.41
  5. Step 5: Solve for x
    x = 584,696,943.41/30,365.52
  6. Step 6: Final answer
    x = 19,255.29

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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.