Home / 20,011.37-27,617.75-11,513.81

Finding the Fourth Proportional to 20,011.37, 27,617.75 and 11,513.81

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Solution

The fourth proportional to 20,011.37, 27,617.75 and 11,513.81 is: 15,890.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.37 : 27,617.75 = 11,513.81 : x
  2. Step 2: Convert to fraction form
    20,011.37/27,617.75 = 11,513.81/x
  3. Step 3: Cross multiply
    20,011.37x = 27,617.75 × 11,513.81
  4. Step 4: Simplify right side
    20,011.37x = 317,985,580.78
  5. Step 5: Solve for x
    x = 317,985,580.78/20,011.37
  6. Step 6: Final answer
    x = 15,890.25

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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.