Home / 20,025.31-27,632.50-11,071.59

Finding the Fourth Proportional to 20,025.31, 27,632.50 and 11,071.59

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Solution

The fourth proportional to 20,025.31, 27,632.50 and 11,071.59 is: 15,277.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,025.31 : 27,632.50 = 11,071.59 : x
  2. Step 2: Convert to fraction form
    20,025.31/27,632.50 = 11,071.59/x
  3. Step 3: Cross multiply
    20,025.31x = 27,632.50 × 11,071.59
  4. Step 4: Simplify right side
    20,025.31x = 305,935,710.68
  5. Step 5: Solve for x
    x = 305,935,710.68/20,025.31
  6. Step 6: Final answer
    x = 15,277.45

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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.