Home / 21,912.57-32,877.14-13,153.59

Finding the Fourth Proportional to 21,912.57, 32,877.14 and 13,153.59

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Solution

The fourth proportional to 21,912.57, 32,877.14 and 13,153.59 is: 19,735.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,912.57 : 32,877.14 = 13,153.59 : x
  2. Step 2: Convert to fraction form
    21,912.57/32,877.14 = 13,153.59/x
  3. Step 3: Cross multiply
    21,912.57x = 32,877.14 × 13,153.59
  4. Step 4: Simplify right side
    21,912.57x = 432,452,354.16
  5. Step 5: Solve for x
    x = 432,452,354.16/21,912.57
  6. Step 6: Final answer
    x = 19,735.36

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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.