Home / 20,150.16-27,805.32-18,664.08

Finding the Fourth Proportional to 20,150.16, 27,805.32 and 18,664.08

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Solution

The fourth proportional to 20,150.16, 27,805.32 and 18,664.08 is: 25,754.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,150.16 : 27,805.32 = 18,664.08 : x
  2. Step 2: Convert to fraction form
    20,150.16/27,805.32 = 18,664.08/x
  3. Step 3: Cross multiply
    20,150.16x = 27,805.32 × 18,664.08
  4. Step 4: Simplify right side
    20,150.16x = 518,960,716.91
  5. Step 5: Solve for x
    x = 518,960,716.91/20,150.16
  6. Step 6: Final answer
    x = 25,754.67

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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.