Home / 21,168.79-31,753.44-14,593.21

Finding the Fourth Proportional to 21,168.79, 31,753.44 and 14,593.21

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Solution

The fourth proportional to 21,168.79, 31,753.44 and 14,593.21 is: 21,889.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,168.79 : 31,753.44 = 14,593.21 : x
  2. Step 2: Convert to fraction form
    21,168.79/31,753.44 = 14,593.21/x
  3. Step 3: Cross multiply
    21,168.79x = 31,753.44 × 14,593.21
  4. Step 4: Simplify right side
    21,168.79x = 463,384,618.14
  5. Step 5: Solve for x
    x = 463,384,618.14/21,168.79
  6. Step 6: Final answer
    x = 21,889.99

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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.