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Finding the Fourth Proportional to 36,432, 50,267.52 and 20,513.28

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Solution

The fourth proportional to 36,432, 50,267.52 and 20,513.28 is: 28,303.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,432 : 50,267.52 = 20,513.28 : x
  2. Step 2: Convert to fraction form
    36,432/50,267.52 = 20,513.28/x
  3. Step 3: Cross multiply
    36,432x = 50,267.52 × 20,513.28
  4. Step 4: Simplify right side
    36,432x = 1,031,151,712.67
  5. Step 5: Solve for x
    x = 1,031,151,712.67/36,432
  6. Step 6: Final answer
    x = 28,303.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.