Home / 36,071.49-49,778.55-20,155.95

Finding the Fourth Proportional to 36,071.49, 49,778.55 and 20,155.95

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Solution

The fourth proportional to 36,071.49, 49,778.55 and 20,155.95 is: 27,815.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,071.49 : 49,778.55 = 20,155.95 : x
  2. Step 2: Convert to fraction form
    36,071.49/49,778.55 = 20,155.95/x
  3. Step 3: Cross multiply
    36,071.49x = 49,778.55 × 20,155.95
  4. Step 4: Simplify right side
    36,071.49x = 1,003,333,964.87
  5. Step 5: Solve for x
    x = 1,003,333,964.87/36,071.49
  6. Step 6: Final answer
    x = 27,815.15

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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.