Home / 30,316.65-45,480.06-13,676.28

Finding the Fourth Proportional to 30,316.65, 45,480.06 and 13,676.28

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Solution

The fourth proportional to 30,316.65, 45,480.06 and 13,676.28 is: 20,516.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,316.65 : 45,480.06 = 13,676.28 : x
  2. Step 2: Convert to fraction form
    30,316.65/45,480.06 = 13,676.28/x
  3. Step 3: Cross multiply
    30,316.65x = 45,480.06 × 13,676.28
  4. Step 4: Simplify right side
    30,316.65x = 621,998,034.98
  5. Step 5: Solve for x
    x = 621,998,034.98/30,316.65
  6. Step 6: Final answer
    x = 20,516.71

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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.