Home / 21,145.04-29,180.50-11,584.76

Finding the Fourth Proportional to 21,145.04, 29,180.50 and 11,584.76

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Solution

The fourth proportional to 21,145.04, 29,180.50 and 11,584.76 is: 15,987.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,145.04 : 29,180.50 = 11,584.76 : x
  2. Step 2: Convert to fraction form
    21,145.04/29,180.50 = 11,584.76/x
  3. Step 3: Cross multiply
    21,145.04x = 29,180.50 × 11,584.76
  4. Step 4: Simplify right side
    21,145.04x = 338,049,089.18
  5. Step 5: Solve for x
    x = 338,049,089.18/21,145.04
  6. Step 6: Final answer
    x = 15,987.16

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Double scale
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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.