Home / 22,721.68-31,353.68-16,756.56

Finding the Fourth Proportional to 22,721.68, 31,353.68 and 16,756.56

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Solution

The fourth proportional to 22,721.68, 31,353.68 and 16,756.56 is: 23,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,721.68 : 31,353.68 = 16,756.56 : x
  2. Step 2: Convert to fraction form
    22,721.68/31,353.68 = 16,756.56/x
  3. Step 3: Cross multiply
    22,721.68x = 31,353.68 × 16,756.56
  4. Step 4: Simplify right side
    22,721.68x = 525,379,820.14
  5. Step 5: Solve for x
    x = 525,379,820.14/22,721.68
  6. Step 6: Final answer
    x = 23,122.40

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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.