Home / 21,179.48-31,774.48-14,951.62

Finding the Fourth Proportional to 21,179.48, 31,774.48 and 14,951.62

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Solution

The fourth proportional to 21,179.48, 31,774.48 and 14,951.62 is: 22,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,179.48 : 31,774.48 = 14,951.62 : x
  2. Step 2: Convert to fraction form
    21,179.48/31,774.48 = 14,951.62/x
  3. Step 3: Cross multiply
    21,179.48x = 31,774.48 × 14,951.62
  4. Step 4: Simplify right side
    21,179.48x = 475,079,953.00
  5. Step 5: Solve for x
    x = 475,079,953.00/21,179.48
  6. Step 6: Final answer
    x = 22,431.15

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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.