Home / 20,914.64-31,344.27-15,341.87

Finding the Fourth Proportional to 20,914.64, 31,344.27 and 15,341.87

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Solution

The fourth proportional to 20,914.64, 31,344.27 and 15,341.87 is: 22,992.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,914.64 : 31,344.27 = 15,341.87 : x
  2. Step 2: Convert to fraction form
    20,914.64/31,344.27 = 15,341.87/x
  3. Step 3: Cross multiply
    20,914.64x = 31,344.27 × 15,341.87
  4. Step 4: Simplify right side
    20,914.64x = 480,879,736.41
  5. Step 5: Solve for x
    x = 480,879,736.41/20,914.64
  6. Step 6: Final answer
    x = 22,992.50

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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.