Home / 21,522.48-32,332.92-20,637.84

Finding the Fourth Proportional to 21,522.48, 32,332.92 and 20,637.84

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Solution

The fourth proportional to 21,522.48, 32,332.92 and 20,637.84 is: 31,003.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,522.48 : 32,332.92 = 20,637.84 : x
  2. Step 2: Convert to fraction form
    21,522.48/32,332.92 = 20,637.84/x
  3. Step 3: Cross multiply
    21,522.48x = 32,332.92 × 20,637.84
  4. Step 4: Simplify right side
    21,522.48x = 667,281,629.69
  5. Step 5: Solve for x
    x = 667,281,629.69/21,522.48
  6. Step 6: Final answer
    x = 31,003.94

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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.