Home / 21,168.30-29,210.31-11,735.04

Finding the Fourth Proportional to 21,168.30, 29,210.31 and 11,735.04

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Solution

The fourth proportional to 21,168.30, 29,210.31 and 11,735.04 is: 16,193.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.30 : 29,210.31 = 11,735.04 : x
  2. Step 2: Convert to fraction form
    21,168.30/29,210.31 = 11,735.04/x
  3. Step 3: Cross multiply
    21,168.30x = 29,210.31 × 11,735.04
  4. Step 4: Simplify right side
    21,168.30x = 342,784,156.26
  5. Step 5: Solve for x
    x = 342,784,156.26/21,168.30
  6. Step 6: Final answer
    x = 16,193.28

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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.