Home / 27,455.00-37,889.60-15,520.37

Finding the Fourth Proportional to 27,455.00, 37,889.60 and 15,520.37

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Solution

The fourth proportional to 27,455.00, 37,889.60 and 15,520.37 is: 21,419.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,455.00 : 37,889.60 = 15,520.37 : x
  2. Step 2: Convert to fraction form
    27,455.00/37,889.60 = 15,520.37/x
  3. Step 3: Cross multiply
    27,455.00x = 37,889.60 × 15,520.37
  4. Step 4: Simplify right side
    27,455.00x = 588,060,344.10
  5. Step 5: Solve for x
    x = 588,060,344.10/27,455.00
  6. Step 6: Final answer
    x = 21,419.07

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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.