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Finding the Fourth Proportional to 29,347.62, 40,499.01 and 15,918.54

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Solution

The fourth proportional to 29,347.62, 40,499.01 and 15,918.54 is: 21,967.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,347.62 : 40,499.01 = 15,918.54 : x
  2. Step 2: Convert to fraction form
    29,347.62/40,499.01 = 15,918.54/x
  3. Step 3: Cross multiply
    29,347.62x = 40,499.01 × 15,918.54
  4. Step 4: Simplify right side
    29,347.62x = 644,685,110.65
  5. Step 5: Solve for x
    x = 644,685,110.65/29,347.62
  6. Step 6: Final answer
    x = 21,967.20

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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.