Home / 21,701.67-29,950.53-13,204.41

Finding the Fourth Proportional to 21,701.67, 29,950.53 and 13,204.41

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Solution

The fourth proportional to 21,701.67, 29,950.53 and 13,204.41 is: 18,223.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.67 : 29,950.53 = 13,204.41 : x
  2. Step 2: Convert to fraction form
    21,701.67/29,950.53 = 13,204.41/x
  3. Step 3: Cross multiply
    21,701.67x = 29,950.53 × 13,204.41
  4. Step 4: Simplify right side
    21,701.67x = 395,479,077.84
  5. Step 5: Solve for x
    x = 395,479,077.84/21,701.67
  6. Step 6: Final answer
    x = 18,223.44

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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.