Home / 20,260.08-27,953.88-15,236.34

Finding the Fourth Proportional to 20,260.08, 27,953.88 and 15,236.34

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Solution

The fourth proportional to 20,260.08, 27,953.88 and 15,236.34 is: 21,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.08 : 27,953.88 = 15,236.34 : x
  2. Step 2: Convert to fraction form
    20,260.08/27,953.88 = 15,236.34/x
  3. Step 3: Cross multiply
    20,260.08x = 27,953.88 × 15,236.34
  4. Step 4: Simplify right side
    20,260.08x = 425,914,820.00
  5. Step 5: Solve for x
    x = 425,914,820.00/20,260.08
  6. Step 6: Final answer
    x = 21,022.37

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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.