Home / 21,851.03-30,154.14-12,418.97

Finding the Fourth Proportional to 21,851.03, 30,154.14 and 12,418.97

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Solution

The fourth proportional to 21,851.03, 30,154.14 and 12,418.97 is: 17,138.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851.03 : 30,154.14 = 12,418.97 : x
  2. Step 2: Convert to fraction form
    21,851.03/30,154.14 = 12,418.97/x
  3. Step 3: Cross multiply
    21,851.03x = 30,154.14 × 12,418.97
  4. Step 4: Simplify right side
    21,851.03x = 374,483,360.04
  5. Step 5: Solve for x
    x = 374,483,360.04/21,851.03
  6. Step 6: Final answer
    x = 17,138.02

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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.