Home / 21,354.45-29,463.53-12,969.33

Finding the Fourth Proportional to 21,354.45, 29,463.53 and 12,969.33

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Solution

The fourth proportional to 21,354.45, 29,463.53 and 12,969.33 is: 17,894.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,354.45 : 29,463.53 = 12,969.33 : x
  2. Step 2: Convert to fraction form
    21,354.45/29,463.53 = 12,969.33/x
  3. Step 3: Cross multiply
    21,354.45x = 29,463.53 × 12,969.33
  4. Step 4: Simplify right side
    21,354.45x = 382,122,178.69
  5. Step 5: Solve for x
    x = 382,122,178.69/21,354.45
  6. Step 6: Final answer
    x = 17,894.26

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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.