Home / 36,018.30-49,706.58-20,105.81

Finding the Fourth Proportional to 36,018.30, 49,706.58 and 20,105.81

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Solution

The fourth proportional to 36,018.30, 49,706.58 and 20,105.81 is: 27,746.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,018.30 : 49,706.58 = 20,105.81 : x
  2. Step 2: Convert to fraction form
    36,018.30/49,706.58 = 20,105.81/x
  3. Step 3: Cross multiply
    36,018.30x = 49,706.58 × 20,105.81
  4. Step 4: Simplify right side
    36,018.30x = 999,390,804.70
  5. Step 5: Solve for x
    x = 999,390,804.70/36,018.30
  6. Step 6: Final answer
    x = 27,746.75

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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.