Home / 20,433.66-30,607.96-13,001.30

Finding the Fourth Proportional to 20,433.66, 30,607.96 and 13,001.30

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Solution

The fourth proportional to 20,433.66, 30,607.96 and 13,001.30 is: 19,474.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,433.66 : 30,607.96 = 13,001.30 : x
  2. Step 2: Convert to fraction form
    20,433.66/30,607.96 = 13,001.30/x
  3. Step 3: Cross multiply
    20,433.66x = 30,607.96 × 13,001.30
  4. Step 4: Simplify right side
    20,433.66x = 397,943,270.35
  5. Step 5: Solve for x
    x = 397,943,270.35/20,433.66
  6. Step 6: Final answer
    x = 19,474.89

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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.