Home / 20,207.99-27,885.94-11,133.05

Finding the Fourth Proportional to 20,207.99, 27,885.94 and 11,133.05

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Solution

The fourth proportional to 20,207.99, 27,885.94 and 11,133.05 is: 15,363.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.99 : 27,885.94 = 11,133.05 : x
  2. Step 2: Convert to fraction form
    20,207.99/27,885.94 = 11,133.05/x
  3. Step 3: Cross multiply
    20,207.99x = 27,885.94 × 11,133.05
  4. Step 4: Simplify right side
    20,207.99x = 310,455,397.05
  5. Step 5: Solve for x
    x = 310,455,397.05/20,207.99
  6. Step 6: Final answer
    x = 15,363.00

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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.