Home / 20,206.48-27,885.81-11,253.99

Finding the Fourth Proportional to 20,206.48, 27,885.81 and 11,253.99

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Solution

The fourth proportional to 20,206.48, 27,885.81 and 11,253.99 is: 15,530.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206.48 : 27,885.81 = 11,253.99 : x
  2. Step 2: Convert to fraction form
    20,206.48/27,885.81 = 11,253.99/x
  3. Step 3: Cross multiply
    20,206.48x = 27,885.81 × 11,253.99
  4. Step 4: Simplify right side
    20,206.48x = 313,826,431.18
  5. Step 5: Solve for x
    x = 313,826,431.18/20,206.48
  6. Step 6: Final answer
    x = 15,530.98

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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.