Home / 20,045.10-27,662.58-10,971.26

Finding the Fourth Proportional to 20,045.10, 27,662.58 and 10,971.26

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Solution

The fourth proportional to 20,045.10, 27,662.58 and 10,971.26 is: 15,140.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,045.10 : 27,662.58 = 10,971.26 : x
  2. Step 2: Convert to fraction form
    20,045.10/27,662.58 = 10,971.26/x
  3. Step 3: Cross multiply
    20,045.10x = 27,662.58 × 10,971.26
  4. Step 4: Simplify right side
    20,045.10x = 303,493,219.14
  5. Step 5: Solve for x
    x = 303,493,219.14/20,045.10
  6. Step 6: Final answer
    x = 15,140.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.