Home / 20,501.10-30,751.65-6,650.10

Finding the Fourth Proportional to 20,501.10, 30,751.65 and 6,650.10

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Solution

The fourth proportional to 20,501.10, 30,751.65 and 6,650.10 is: 9,975.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,501.10 : 30,751.65 = 6,650.10 : x
  2. Step 2: Convert to fraction form
    20,501.10/30,751.65 = 6,650.10/x
  3. Step 3: Cross multiply
    20,501.10x = 30,751.65 × 6,650.10
  4. Step 4: Simplify right side
    20,501.10x = 204,501,547.67
  5. Step 5: Solve for x
    x = 204,501,547.67/20,501.10
  6. Step 6: Final answer
    x = 9,975.15

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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.