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Finding the Fourth Proportional to 22,590.74, 31,173.01 and 13,031.51

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Solution

The fourth proportional to 22,590.74, 31,173.01 and 13,031.51 is: 17,982.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,590.74 : 31,173.01 = 13,031.51 : x
  2. Step 2: Convert to fraction form
    22,590.74/31,173.01 = 13,031.51/x
  3. Step 3: Cross multiply
    22,590.74x = 31,173.01 × 13,031.51
  4. Step 4: Simplify right side
    22,590.74x = 406,231,203.10
  5. Step 5: Solve for x
    x = 406,231,203.10/22,590.74
  6. Step 6: Final answer
    x = 17,982.20

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.