Home / 21,744.72-30,003.58-20,637.44

Finding the Fourth Proportional to 21,744.72, 30,003.58 and 20,637.44

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Solution

The fourth proportional to 21,744.72, 30,003.58 and 20,637.44 is: 28,475.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,744.72 : 30,003.58 = 20,637.44 : x
  2. Step 2: Convert to fraction form
    21,744.72/30,003.58 = 20,637.44/x
  3. Step 3: Cross multiply
    21,744.72x = 30,003.58 × 20,637.44
  4. Step 4: Simplify right side
    21,744.72x = 619,197,082.04
  5. Step 5: Solve for x
    x = 619,197,082.04/21,744.72
  6. Step 6: Final answer
    x = 28,475.74

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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.