Home / 20,260.43-27,972.22-13,897.67

Finding the Fourth Proportional to 20,260.43, 27,972.22 and 13,897.67

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Solution

The fourth proportional to 20,260.43, 27,972.22 and 13,897.67 is: 19,187.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,260.43 : 27,972.22 = 13,897.67 : x
  2. Step 2: Convert to fraction form
    20,260.43/27,972.22 = 13,897.67/x
  3. Step 3: Cross multiply
    20,260.43x = 27,972.22 × 13,897.67
  4. Step 4: Simplify right side
    20,260.43x = 388,748,682.73
  5. Step 5: Solve for x
    x = 388,748,682.73/20,260.43
  6. Step 6: Final answer
    x = 19,187.59

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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.