Home / 20,232.16-27,852.78-15,187.88

Finding the Fourth Proportional to 20,232.16, 27,852.78 and 15,187.88

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Solution

The fourth proportional to 20,232.16, 27,852.78 and 15,187.88 is: 20,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,232.16 : 27,852.78 = 15,187.88 : x
  2. Step 2: Convert to fraction form
    20,232.16/27,852.78 = 15,187.88/x
  3. Step 3: Cross multiply
    20,232.16x = 27,852.78 × 15,187.88
  4. Step 4: Simplify right side
    20,232.16x = 423,024,680.31
  5. Step 5: Solve for x
    x = 423,024,680.31/20,232.16
  6. Step 6: Final answer
    x = 20,908.53

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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.