Home / 21,407.04-29,538.24-11,975.04

Finding the Fourth Proportional to 21,407.04, 29,538.24 and 11,975.04

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Solution

The fourth proportional to 21,407.04, 29,538.24 and 11,975.04 is: 16,523.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,407.04 : 29,538.24 = 11,975.04 : x
  2. Step 2: Convert to fraction form
    21,407.04/29,538.24 = 11,975.04/x
  3. Step 3: Cross multiply
    21,407.04x = 29,538.24 × 11,975.04
  4. Step 4: Simplify right side
    21,407.04x = 353,721,605.53
  5. Step 5: Solve for x
    x = 353,721,605.53/21,407.04
  6. Step 6: Final answer
    x = 16,523.61

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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.