Home / 20,735.37-31,097.55-7,587.84

Finding the Fourth Proportional to 20,735.37, 31,097.55 and 7,587.84

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Solution

The fourth proportional to 20,735.37, 31,097.55 and 7,587.84 is: 11,379.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.37 : 31,097.55 = 7,587.84 : x
  2. Step 2: Convert to fraction form
    20,735.37/31,097.55 = 7,587.84/x
  3. Step 3: Cross multiply
    20,735.37x = 31,097.55 × 7,587.84
  4. Step 4: Simplify right side
    20,735.37x = 235,963,233.79
  5. Step 5: Solve for x
    x = 235,963,233.79/20,735.37
  6. Step 6: Final answer
    x = 11,379.75

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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.