Home / 21,294.33-29,357.55-14,912.34

Finding the Fourth Proportional to 21,294.33, 29,357.55 and 14,912.34

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Solution

The fourth proportional to 21,294.33, 29,357.55 and 14,912.34 is: 20,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,294.33 : 29,357.55 = 14,912.34 : x
  2. Step 2: Convert to fraction form
    21,294.33/29,357.55 = 14,912.34/x
  3. Step 3: Cross multiply
    21,294.33x = 29,357.55 × 14,912.34
  4. Step 4: Simplify right side
    21,294.33x = 437,789,767.17
  5. Step 5: Solve for x
    x = 437,789,767.17/21,294.33
  6. Step 6: Final answer
    x = 20,558.98

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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.