Home / 21,014.73-29,000.25-11,455.20

Finding the Fourth Proportional to 21,014.73, 29,000.25 and 11,455.20

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Solution

The fourth proportional to 21,014.73, 29,000.25 and 11,455.20 is: 15,808.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014.73 : 29,000.25 = 11,455.20 : x
  2. Step 2: Convert to fraction form
    21,014.73/29,000.25 = 11,455.20/x
  3. Step 3: Cross multiply
    21,014.73x = 29,000.25 × 11,455.20
  4. Step 4: Simplify right side
    21,014.73x = 332,203,663.80
  5. Step 5: Solve for x
    x = 332,203,663.80/21,014.73
  6. Step 6: Final answer
    x = 15,808.13

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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.