Home / 21,402.89-32,108.70-7,361.09

Finding the Fourth Proportional to 21,402.89, 32,108.70 and 7,361.09

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Solution

The fourth proportional to 21,402.89, 32,108.70 and 7,361.09 is: 11,043.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,402.89 : 32,108.70 = 7,361.09 : x
  2. Step 2: Convert to fraction form
    21,402.89/32,108.70 = 7,361.09/x
  3. Step 3: Cross multiply
    21,402.89x = 32,108.70 × 7,361.09
  4. Step 4: Simplify right side
    21,402.89x = 236,354,869.94
  5. Step 5: Solve for x
    x = 236,354,869.94/21,402.89
  6. Step 6: Final answer
    x = 11,043.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.