Home / 20,208.90-30,294.56-10,326.36

Finding the Fourth Proportional to 20,208.90, 30,294.56 and 10,326.36

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Solution

The fourth proportional to 20,208.90, 30,294.56 and 10,326.36 is: 15,479.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,208.90 : 30,294.56 = 10,326.36 : x
  2. Step 2: Convert to fraction form
    20,208.90/30,294.56 = 10,326.36/x
  3. Step 3: Cross multiply
    20,208.90x = 30,294.56 × 10,326.36
  4. Step 4: Simplify right side
    20,208.90x = 312,832,532.60
  5. Step 5: Solve for x
    x = 312,832,532.60/20,208.90
  6. Step 6: Final answer
    x = 15,479.94

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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.