Home / 29,290.82-40,421.26-15,862.07

Finding the Fourth Proportional to 29,290.82, 40,421.26 and 15,862.07

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Solution

The fourth proportional to 29,290.82, 40,421.26 and 15,862.07 is: 21,889.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,290.82 : 40,421.26 = 15,862.07 : x
  2. Step 2: Convert to fraction form
    29,290.82/40,421.26 = 15,862.07/x
  3. Step 3: Cross multiply
    29,290.82x = 40,421.26 × 15,862.07
  4. Step 4: Simplify right side
    29,290.82x = 641,165,017.41
  5. Step 5: Solve for x
    x = 641,165,017.41/29,290.82
  6. Step 6: Final answer
    x = 21,889.62

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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.