Home / 20,317.39-28,011.87-16,914.16

Finding the Fourth Proportional to 20,317.39, 28,011.87 and 16,914.16

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Solution

The fourth proportional to 20,317.39, 28,011.87 and 16,914.16 is: 23,319.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,317.39 : 28,011.87 = 16,914.16 : x
  2. Step 2: Convert to fraction form
    20,317.39/28,011.87 = 16,914.16/x
  3. Step 3: Cross multiply
    20,317.39x = 28,011.87 × 16,914.16
  4. Step 4: Simplify right side
    20,317.39x = 473,797,251.08
  5. Step 5: Solve for x
    x = 473,797,251.08/20,317.39
  6. Step 6: Final answer
    x = 23,319.79

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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.