Home / 20,007.91-30,015.31-8,914.35

Finding the Fourth Proportional to 20,007.91, 30,015.31 and 8,914.35

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Solution

The fourth proportional to 20,007.91, 30,015.31 and 8,914.35 is: 13,373.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,007.91 : 30,015.31 = 8,914.35 : x
  2. Step 2: Convert to fraction form
    20,007.91/30,015.31 = 8,914.35/x
  3. Step 3: Cross multiply
    20,007.91x = 30,015.31 × 8,914.35
  4. Step 4: Simplify right side
    20,007.91x = 267,567,085.68
  5. Step 5: Solve for x
    x = 267,567,085.68/20,007.91
  6. Step 6: Final answer
    x = 13,373.06

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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.