Home / 30,042.63-45,066.98-10,318.61

Finding the Fourth Proportional to 30,042.63, 45,066.98 and 10,318.61

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Solution

The fourth proportional to 30,042.63, 45,066.98 and 10,318.61 is: 15,478.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,042.63 : 45,066.98 = 10,318.61 : x
  2. Step 2: Convert to fraction form
    30,042.63/45,066.98 = 10,318.61/x
  3. Step 3: Cross multiply
    30,042.63x = 45,066.98 × 10,318.61
  4. Step 4: Simplify right side
    30,042.63x = 465,028,728.96
  5. Step 5: Solve for x
    x = 465,028,728.96/30,042.63
  6. Step 6: Final answer
    x = 15,478.96

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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.