Home / 30,602.45-45,898.39-8,113.28

Finding the Fourth Proportional to 30,602.45, 45,898.39 and 8,113.28

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Solution

The fourth proportional to 30,602.45, 45,898.39 and 8,113.28 is: 12,168.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,602.45 : 45,898.39 = 8,113.28 : x
  2. Step 2: Convert to fraction form
    30,602.45/45,898.39 = 8,113.28/x
  3. Step 3: Cross multiply
    30,602.45x = 45,898.39 × 8,113.28
  4. Step 4: Simplify right side
    30,602.45x = 372,386,469.34
  5. Step 5: Solve for x
    x = 372,386,469.34/30,602.45
  6. Step 6: Final answer
    x = 12,168.52

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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.