Home / 20,207.86-30,317.79-10,354.06

Finding the Fourth Proportional to 20,207.86, 30,317.79 and 10,354.06

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Solution

The fourth proportional to 20,207.86, 30,317.79 and 10,354.06 is: 15,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,207.86 : 30,317.79 = 10,354.06 : x
  2. Step 2: Convert to fraction form
    20,207.86/30,317.79 = 10,354.06/x
  3. Step 3: Cross multiply
    20,207.86x = 30,317.79 × 10,354.06
  4. Step 4: Simplify right side
    20,207.86x = 313,912,216.73
  5. Step 5: Solve for x
    x = 313,912,216.73/20,207.86
  6. Step 6: Final answer
    x = 15,534.16

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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.