Home / 20,951.86-28,898.48-14,225.81

Finding the Fourth Proportional to 20,951.86, 28,898.48 and 14,225.81

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Solution

The fourth proportional to 20,951.86, 28,898.48 and 14,225.81 is: 19,621.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,951.86 : 28,898.48 = 14,225.81 : x
  2. Step 2: Convert to fraction form
    20,951.86/28,898.48 = 14,225.81/x
  3. Step 3: Cross multiply
    20,951.86x = 28,898.48 × 14,225.81
  4. Step 4: Simplify right side
    20,951.86x = 411,104,285.77
  5. Step 5: Solve for x
    x = 411,104,285.77/20,951.86
  6. Step 6: Final answer
    x = 19,621.37

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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.