Home / 21,014.76-28,999.98-11,454.73

Finding the Fourth Proportional to 21,014.76, 28,999.98 and 11,454.73

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Solution

The fourth proportional to 21,014.76, 28,999.98 and 11,454.73 is: 15,807.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.76 : 28,999.98 = 11,454.73 : x
  2. Step 2: Convert to fraction form
    21,014.76/28,999.98 = 11,454.73/x
  3. Step 3: Cross multiply
    21,014.76x = 28,999.98 × 11,454.73
  4. Step 4: Simplify right side
    21,014.76x = 332,186,940.91
  5. Step 5: Solve for x
    x = 332,186,940.91/21,014.76
  6. Step 6: Final answer
    x = 15,807.32

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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.