Home / 20,605.10-30,907.71-5,814.14

Finding the Fourth Proportional to 20,605.10, 30,907.71 and 5,814.14

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Solution

The fourth proportional to 20,605.10, 30,907.71 and 5,814.14 is: 8,721.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,605.10 : 30,907.71 = 5,814.14 : x
  2. Step 2: Convert to fraction form
    20,605.10/30,907.71 = 5,814.14/x
  3. Step 3: Cross multiply
    20,605.10x = 30,907.71 × 5,814.14
  4. Step 4: Simplify right side
    20,605.10x = 179,701,598.48
  5. Step 5: Solve for x
    x = 179,701,598.48/20,605.10
  6. Step 6: Final answer
    x = 8,721.22

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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.