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Finding the Fourth Proportional to 17,365.40, 26,048.10 and 13,218.20

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Solution

The fourth proportional to 17,365.40, 26,048.10 and 13,218.20 is: 19,827.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,365.40 : 26,048.10 = 13,218.20 : x
  2. Step 2: Convert to fraction form
    17,365.40/26,048.10 = 13,218.20/x
  3. Step 3: Cross multiply
    17,365.40x = 26,048.10 × 13,218.20
  4. Step 4: Simplify right side
    17,365.40x = 344,308,995.42
  5. Step 5: Solve for x
    x = 344,308,995.42/17,365.40
  6. Step 6: Final answer
    x = 19,827.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.