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Finding the Fourth Proportional to 21,562.00, 29,745.48 and 14,390.00

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Solution

The fourth proportional to 21,562.00, 29,745.48 and 14,390.00 is: 19,851.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.00 : 29,745.48 = 14,390.00 : x
  2. Step 2: Convert to fraction form
    21,562.00/29,745.48 = 14,390.00/x
  3. Step 3: Cross multiply
    21,562.00x = 29,745.48 × 14,390.00
  4. Step 4: Simplify right side
    21,562.00x = 428,037,560.36
  5. Step 5: Solve for x
    x = 428,037,560.36/21,562.00
  6. Step 6: Final answer
    x = 19,851.48

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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.