Home / 20,731.77-31,097.50-5,940.70

Finding the Fourth Proportional to 20,731.77, 31,097.50 and 5,940.70

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Solution

The fourth proportional to 20,731.77, 31,097.50 and 5,940.70 is: 8,911.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,731.77 : 31,097.50 = 5,940.70 : x
  2. Step 2: Convert to fraction form
    20,731.77/31,097.50 = 5,940.70/x
  3. Step 3: Cross multiply
    20,731.77x = 31,097.50 × 5,940.70
  4. Step 4: Simplify right side
    20,731.77x = 184,740,918.25
  5. Step 5: Solve for x
    x = 184,740,918.25/20,731.77
  6. Step 6: Final answer
    x = 8,911.01

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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.