Home / 20,999.32-28,929.76-14,614.96

Finding the Fourth Proportional to 20,999.32, 28,929.76 and 14,614.96

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Solution

The fourth proportional to 20,999.32, 28,929.76 and 14,614.96 is: 20,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,999.32 : 28,929.76 = 14,614.96 : x
  2. Step 2: Convert to fraction form
    20,999.32/28,929.76 = 14,614.96/x
  3. Step 3: Cross multiply
    20,999.32x = 28,929.76 × 14,614.96
  4. Step 4: Simplify right side
    20,999.32x = 422,807,285.21
  5. Step 5: Solve for x
    x = 422,807,285.21/20,999.32
  6. Step 6: Final answer
    x = 20,134.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.