Home / 21,016.62-29,003.16-11,585.52

Finding the Fourth Proportional to 21,016.62, 29,003.16 and 11,585.52

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Solution

The fourth proportional to 21,016.62, 29,003.16 and 11,585.52 is: 15,988.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,016.62 : 29,003.16 = 11,585.52 : x
  2. Step 2: Convert to fraction form
    21,016.62/29,003.16 = 11,585.52/x
  3. Step 3: Cross multiply
    21,016.62x = 29,003.16 × 11,585.52
  4. Step 4: Simplify right side
    21,016.62x = 336,016,690.24
  5. Step 5: Solve for x
    x = 336,016,690.24/21,016.62
  6. Step 6: Final answer
    x = 15,988.14

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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.