Home / 21,662.93-29,895.63-11,972.47

Finding the Fourth Proportional to 21,662.93, 29,895.63 and 11,972.47

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Solution

The fourth proportional to 21,662.93, 29,895.63 and 11,972.47 is: 16,522.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,662.93 : 29,895.63 = 11,972.47 : x
  2. Step 2: Convert to fraction form
    21,662.93/29,895.63 = 11,972.47/x
  3. Step 3: Cross multiply
    21,662.93x = 29,895.63 × 11,972.47
  4. Step 4: Simplify right side
    21,662.93x = 357,924,452.99
  5. Step 5: Solve for x
    x = 357,924,452.99/21,662.93
  6. Step 6: Final answer
    x = 16,522.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.