Home / 20,814.56-28,733.46-13,271.01

Finding the Fourth Proportional to 20,814.56, 28,733.46 and 13,271.01

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Solution

The fourth proportional to 20,814.56, 28,733.46 and 13,271.01 is: 18,319.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814.56 : 28,733.46 = 13,271.01 : x
  2. Step 2: Convert to fraction form
    20,814.56/28,733.46 = 13,271.01/x
  3. Step 3: Cross multiply
    20,814.56x = 28,733.46 × 13,271.01
  4. Step 4: Simplify right side
    20,814.56x = 381,322,034.99
  5. Step 5: Solve for x
    x = 381,322,034.99/20,814.56
  6. Step 6: Final answer
    x = 18,319.97

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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.