Home / 21,593.85-29,812.20-14,889.48

Finding the Fourth Proportional to 21,593.85, 29,812.20 and 14,889.48

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Solution

The fourth proportional to 21,593.85, 29,812.20 and 14,889.48 is: 20,556.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,593.85 : 29,812.20 = 14,889.48 : x
  2. Step 2: Convert to fraction form
    21,593.85/29,812.20 = 14,889.48/x
  3. Step 3: Cross multiply
    21,593.85x = 29,812.20 × 14,889.48
  4. Step 4: Simplify right side
    21,593.85x = 443,888,155.66
  5. Step 5: Solve for x
    x = 443,888,155.66/21,593.85
  6. Step 6: Final answer
    x = 20,556.23

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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.