Home / 25,731.90-35,514.63-15,122.07

Finding the Fourth Proportional to 25,731.90, 35,514.63 and 15,122.07

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Solution

The fourth proportional to 25,731.90, 35,514.63 and 15,122.07 is: 20,871.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,731.90 : 35,514.63 = 15,122.07 : x
  2. Step 2: Convert to fraction form
    25,731.90/35,514.63 = 15,122.07/x
  3. Step 3: Cross multiply
    25,731.90x = 35,514.63 × 15,122.07
  4. Step 4: Simplify right side
    25,731.90x = 537,054,720.88
  5. Step 5: Solve for x
    x = 537,054,720.88/25,731.90
  6. Step 6: Final answer
    x = 20,871.16

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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.