Home / 20,308.35-30,451.59-10,953.39

Finding the Fourth Proportional to 20,308.35, 30,451.59 and 10,953.39

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Solution

The fourth proportional to 20,308.35, 30,451.59 and 10,953.39 is: 16,424.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,308.35 : 30,451.59 = 10,953.39 : x
  2. Step 2: Convert to fraction form
    20,308.35/30,451.59 = 10,953.39/x
  3. Step 3: Cross multiply
    20,308.35x = 30,451.59 × 10,953.39
  4. Step 4: Simplify right side
    20,308.35x = 333,548,141.39
  5. Step 5: Solve for x
    x = 333,548,141.39/20,308.35
  6. Step 6: Final answer
    x = 16,424.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.