Home / 30,207.18-45,305.10-10,481.70

Finding the Fourth Proportional to 30,207.18, 45,305.10 and 10,481.70

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Solution

The fourth proportional to 30,207.18, 45,305.10 and 10,481.70 is: 15,720.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,207.18 : 45,305.10 = 10,481.70 : x
  2. Step 2: Convert to fraction form
    30,207.18/45,305.10 = 10,481.70/x
  3. Step 3: Cross multiply
    30,207.18x = 45,305.10 × 10,481.70
  4. Step 4: Simplify right side
    30,207.18x = 474,874,466.67
  5. Step 5: Solve for x
    x = 474,874,466.67/30,207.18
  6. Step 6: Final answer
    x = 15,720.58

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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.