Home / 20,316.39-30,448.56-17,672.82

Finding the Fourth Proportional to 20,316.39, 30,448.56 and 17,672.82

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Solution

The fourth proportional to 20,316.39, 30,448.56 and 17,672.82 is: 26,486.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,316.39 : 30,448.56 = 17,672.82 : x
  2. Step 2: Convert to fraction form
    20,316.39/30,448.56 = 17,672.82/x
  3. Step 3: Cross multiply
    20,316.39x = 30,448.56 × 17,672.82
  4. Step 4: Simplify right side
    20,316.39x = 538,111,920.14
  5. Step 5: Solve for x
    x = 538,111,920.14/20,316.39
  6. Step 6: Final answer
    x = 26,486.59

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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.