Home / 20,018.12-27,624.56-11,065.50

Finding the Fourth Proportional to 20,018.12, 27,624.56 and 11,065.50

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Solution

The fourth proportional to 20,018.12, 27,624.56 and 11,065.50 is: 15,270.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,018.12 : 27,624.56 = 11,065.50 : x
  2. Step 2: Convert to fraction form
    20,018.12/27,624.56 = 11,065.50/x
  3. Step 3: Cross multiply
    20,018.12x = 27,624.56 × 11,065.50
  4. Step 4: Simplify right side
    20,018.12x = 305,679,513.35
  5. Step 5: Solve for x
    x = 305,679,513.35/20,018.12
  6. Step 6: Final answer
    x = 15,270.14

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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.