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Finding the Fourth Proportional to 30,468.54, 45,702.71 and 10,742.34

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Solution

The fourth proportional to 30,468.54, 45,702.71 and 10,742.34 is: 16,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.54 : 45,702.71 = 10,742.34 : x
  2. Step 2: Convert to fraction form
    30,468.54/45,702.71 = 10,742.34/x
  3. Step 3: Cross multiply
    30,468.54x = 45,702.71 × 10,742.34
  4. Step 4: Simplify right side
    30,468.54x = 490,953,821.23
  5. Step 5: Solve for x
    x = 490,953,821.23/30,468.54
  6. Step 6: Final answer
    x = 16,113.47

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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.