Home / 23,721.78-32,736.15-12,966.87

Finding the Fourth Proportional to 23,721.78, 32,736.15 and 12,966.87

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Solution

The fourth proportional to 23,721.78, 32,736.15 and 12,966.87 is: 17,894.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,721.78 : 32,736.15 = 12,966.87 : x
  2. Step 2: Convert to fraction form
    23,721.78/32,736.15 = 12,966.87/x
  3. Step 3: Cross multiply
    23,721.78x = 32,736.15 × 12,966.87
  4. Step 4: Simplify right side
    23,721.78x = 424,485,401.35
  5. Step 5: Solve for x
    x = 424,485,401.35/23,721.78
  6. Step 6: Final answer
    x = 17,894.33

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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.