Home / 21,204.89-29,261.42-12,250.94

Finding the Fourth Proportional to 21,204.89, 29,261.42 and 12,250.94

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Solution

The fourth proportional to 21,204.89, 29,261.42 and 12,250.94 is: 16,905.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,204.89 : 29,261.42 = 12,250.94 : x
  2. Step 2: Convert to fraction form
    21,204.89/29,261.42 = 12,250.94/x
  3. Step 3: Cross multiply
    21,204.89x = 29,261.42 × 12,250.94
  4. Step 4: Simplify right side
    21,204.89x = 358,479,693.17
  5. Step 5: Solve for x
    x = 358,479,693.17/21,204.89
  6. Step 6: Final answer
    x = 16,905.52

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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.