Home / 20,011.30-27,617.73-11,513.80

Finding the Fourth Proportional to 20,011.30, 27,617.73 and 11,513.80

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Solution

The fourth proportional to 20,011.30, 27,617.73 and 11,513.80 is: 15,890.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,011.30 : 27,617.73 = 11,513.80 : x
  2. Step 2: Convert to fraction form
    20,011.30/27,617.73 = 11,513.80/x
  3. Step 3: Cross multiply
    20,011.30x = 27,617.73 × 11,513.80
  4. Step 4: Simplify right side
    20,011.30x = 317,985,019.67
  5. Step 5: Solve for x
    x = 317,985,019.67/20,011.30
  6. Step 6: Final answer
    x = 15,890.27

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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.