Home / 21,349.42-29,460.45-12,394.06

Finding the Fourth Proportional to 21,349.42, 29,460.45 and 12,394.06

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Solution

The fourth proportional to 21,349.42, 29,460.45 and 12,394.06 is: 17,102.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,349.42 : 29,460.45 = 12,394.06 : x
  2. Step 2: Convert to fraction form
    21,349.42/29,460.45 = 12,394.06/x
  3. Step 3: Cross multiply
    21,349.42x = 29,460.45 × 12,394.06
  4. Step 4: Simplify right side
    21,349.42x = 365,134,584.93
  5. Step 5: Solve for x
    x = 365,134,584.93/21,349.42
  6. Step 6: Final answer
    x = 17,102.79

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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.