Home / 20,773.62-31,174.26-9,681.45

Finding the Fourth Proportional to 20,773.62, 31,174.26 and 9,681.45

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Solution

The fourth proportional to 20,773.62, 31,174.26 and 9,681.45 is: 14,528.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,773.62 : 31,174.26 = 9,681.45 : x
  2. Step 2: Convert to fraction form
    20,773.62/31,174.26 = 9,681.45/x
  3. Step 3: Cross multiply
    20,773.62x = 31,174.26 × 9,681.45
  4. Step 4: Simplify right side
    20,773.62x = 301,812,039.48
  5. Step 5: Solve for x
    x = 301,812,039.48/20,773.62
  6. Step 6: Final answer
    x = 14,528.62

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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.