Home / 36,070.68-49,778.64-20,155.80

Finding the Fourth Proportional to 36,070.68, 49,778.64 and 20,155.80

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Solution

The fourth proportional to 36,070.68, 49,778.64 and 20,155.80 is: 27,815.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,070.68 : 49,778.64 = 20,155.80 : x
  2. Step 2: Convert to fraction form
    36,070.68/49,778.64 = 20,155.80/x
  3. Step 3: Cross multiply
    36,070.68x = 49,778.64 × 20,155.80
  4. Step 4: Simplify right side
    36,070.68x = 1,003,328,312.11
  5. Step 5: Solve for x
    x = 1,003,328,312.11/36,070.68
  6. Step 6: Final answer
    x = 27,815.62

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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.