Home / 20,254.44-27,947.76-13,529.28

Finding the Fourth Proportional to 20,254.44, 27,947.76 and 13,529.28

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Solution

The fourth proportional to 20,254.44, 27,947.76 and 13,529.28 is: 18,668.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,254.44 : 27,947.76 = 13,529.28 : x
  2. Step 2: Convert to fraction form
    20,254.44/27,947.76 = 13,529.28/x
  3. Step 3: Cross multiply
    20,254.44x = 27,947.76 × 13,529.28
  4. Step 4: Simplify right side
    20,254.44x = 378,113,070.41
  5. Step 5: Solve for x
    x = 378,113,070.41/20,254.44
  6. Step 6: Final answer
    x = 18,668.16

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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.