Home / 18,612.29-27,885.93-15,512.21

Finding the Fourth Proportional to 18,612.29, 27,885.93 and 15,512.21

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Solution

The fourth proportional to 18,612.29, 27,885.93 and 15,512.21 is: 23,241.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,612.29 : 27,885.93 = 15,512.21 : x
  2. Step 2: Convert to fraction form
    18,612.29/27,885.93 = 15,512.21/x
  3. Step 3: Cross multiply
    18,612.29x = 27,885.93 × 15,512.21
  4. Step 4: Simplify right side
    18,612.29x = 432,572,402.21
  5. Step 5: Solve for x
    x = 432,572,402.21/18,612.29
  6. Step 6: Final answer
    x = 23,241.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.