Home / 29,271.68-40,394.78-15,842.94

Finding the Fourth Proportional to 29,271.68, 40,394.78 and 15,842.94

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Solution

The fourth proportional to 29,271.68, 40,394.78 and 15,842.94 is: 21,863.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,271.68 : 40,394.78 = 15,842.94 : x
  2. Step 2: Convert to fraction form
    29,271.68/40,394.78 = 15,842.94/x
  3. Step 3: Cross multiply
    29,271.68x = 40,394.78 × 15,842.94
  4. Step 4: Simplify right side
    29,271.68x = 639,972,075.85
  5. Step 5: Solve for x
    x = 639,972,075.85/29,271.68
  6. Step 6: Final answer
    x = 21,863.18

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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.