Home / 18,521.66-27,792.48-13,456.28

Finding the Fourth Proportional to 18,521.66, 27,792.48 and 13,456.28

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Solution

The fourth proportional to 18,521.66, 27,792.48 and 13,456.28 is: 20,191.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.66 : 27,792.48 = 13,456.28 : x
  2. Step 2: Convert to fraction form
    18,521.66/27,792.48 = 13,456.28/x
  3. Step 3: Cross multiply
    18,521.66x = 27,792.48 × 13,456.28
  4. Step 4: Simplify right side
    18,521.66x = 373,983,392.77
  5. Step 5: Solve for x
    x = 373,983,392.77/18,521.66
  6. Step 6: Final answer
    x = 20,191.68

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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.