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Finding the Fourth Proportional to 20,196, 30,300.12 and 10,342.26

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Solution

The fourth proportional to 20,196, 30,300.12 and 10,342.26 is: 15,516.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,196 : 30,300.12 = 10,342.26 : x
  2. Step 2: Convert to fraction form
    20,196/30,300.12 = 10,342.26/x
  3. Step 3: Cross multiply
    20,196x = 30,300.12 × 10,342.26
  4. Step 4: Simplify right side
    20,196x = 313,371,719.07
  5. Step 5: Solve for x
    x = 313,371,719.07/20,196
  6. Step 6: Final answer
    x = 15,516.52

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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.