Home / 20,697.08-31,028.20-9,001.49

Finding the Fourth Proportional to 20,697.08, 31,028.20 and 9,001.49

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Solution

The fourth proportional to 20,697.08, 31,028.20 and 9,001.49 is: 13,494.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697.08 : 31,028.20 = 9,001.49 : x
  2. Step 2: Convert to fraction form
    20,697.08/31,028.20 = 9,001.49/x
  3. Step 3: Cross multiply
    20,697.08x = 31,028.20 × 9,001.49
  4. Step 4: Simplify right side
    20,697.08x = 279,299,854.37
  5. Step 5: Solve for x
    x = 279,299,854.37/20,697.08
  6. Step 6: Final answer
    x = 13,494.65

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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.