Home / 21,014.89-29,000.17-11,454.86

Finding the Fourth Proportional to 21,014.89, 29,000.17 and 11,454.86

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Solution

The fourth proportional to 21,014.89, 29,000.17 and 11,454.86 is: 15,807.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.89 : 29,000.17 = 11,454.86 : x
  2. Step 2: Convert to fraction form
    21,014.89/29,000.17 = 11,454.86/x
  3. Step 3: Cross multiply
    21,014.89x = 29,000.17 × 11,454.86
  4. Step 4: Simplify right side
    21,014.89x = 332,192,830.05
  5. Step 5: Solve for x
    x = 332,192,830.05/21,014.89
  6. Step 6: Final answer
    x = 15,807.50

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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.