Home / 20,735.32-31,107.48-7,587.60

Finding the Fourth Proportional to 20,735.32, 31,107.48 and 7,587.60

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Solution

The fourth proportional to 20,735.32, 31,107.48 and 7,587.60 is: 11,383.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,735.32 : 31,107.48 = 7,587.60 : x
  2. Step 2: Convert to fraction form
    20,735.32/31,107.48 = 7,587.60/x
  3. Step 3: Cross multiply
    20,735.32x = 31,107.48 × 7,587.60
  4. Step 4: Simplify right side
    20,735.32x = 236,031,115.25
  5. Step 5: Solve for x
    x = 236,031,115.25/20,735.32
  6. Step 6: Final answer
    x = 11,383.05

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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.