Home / 21,164.23-29,182.68-13,497.28

Finding the Fourth Proportional to 21,164.23, 29,182.68 and 13,497.28

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Solution

The fourth proportional to 21,164.23, 29,182.68 and 13,497.28 is: 18,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,164.23 : 29,182.68 = 13,497.28 : x
  2. Step 2: Convert to fraction form
    21,164.23/29,182.68 = 13,497.28/x
  3. Step 3: Cross multiply
    21,164.23x = 29,182.68 × 13,497.28
  4. Step 4: Simplify right side
    21,164.23x = 393,886,730.15
  5. Step 5: Solve for x
    x = 393,886,730.15/21,164.23
  6. Step 6: Final answer
    x = 18,610.97

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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.