Home / 21,050.61-29,049.11-12,548.34

Finding the Fourth Proportional to 21,050.61, 29,049.11 and 12,548.34

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Solution

The fourth proportional to 21,050.61, 29,049.11 and 12,548.34 is: 17,316.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050.61 : 29,049.11 = 12,548.34 : x
  2. Step 2: Convert to fraction form
    21,050.61/29,049.11 = 12,548.34/x
  3. Step 3: Cross multiply
    21,050.61x = 29,049.11 × 12,548.34
  4. Step 4: Simplify right side
    21,050.61x = 364,518,181.60
  5. Step 5: Solve for x
    x = 364,518,181.60/21,050.61
  6. Step 6: Final answer
    x = 17,316.28

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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.