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Finding the Fourth Proportional to 17,662.64, 26,357.38 and 15,699.20

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Solution

The fourth proportional to 17,662.64, 26,357.38 and 15,699.20 is: 23,427.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,662.64 : 26,357.38 = 15,699.20 : x
  2. Step 2: Convert to fraction form
    17,662.64/26,357.38 = 15,699.20/x
  3. Step 3: Cross multiply
    17,662.64x = 26,357.38 × 15,699.20
  4. Step 4: Simplify right side
    17,662.64x = 413,789,780.10
  5. Step 5: Solve for x
    x = 413,789,780.10/17,662.64
  6. Step 6: Final answer
    x = 23,427.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.