Home / 16,712.92-23,005.36-15,138.28

Finding the Fourth Proportional to 16,712.92, 23,005.36 and 15,138.28

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Solution

The fourth proportional to 16,712.92, 23,005.36 and 15,138.28 is: 20,837.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,712.92 : 23,005.36 = 15,138.28 : x
  2. Step 2: Convert to fraction form
    16,712.92/23,005.36 = 15,138.28/x
  3. Step 3: Cross multiply
    16,712.92x = 23,005.36 × 15,138.28
  4. Step 4: Simplify right side
    16,712.92x = 348,261,581.18
  5. Step 5: Solve for x
    x = 348,261,581.18/16,712.92
  6. Step 6: Final answer
    x = 20,837.87

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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.