Home / 22,936.50-31,574.61-20,577.78

Finding the Fourth Proportional to 22,936.50, 31,574.61 and 20,577.78

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Solution

The fourth proportional to 22,936.50, 31,574.61 and 20,577.78 is: 28,327.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,936.50 : 31,574.61 = 20,577.78 : x
  2. Step 2: Convert to fraction form
    22,936.50/31,574.61 = 20,577.78/x
  3. Step 3: Cross multiply
    22,936.50x = 31,574.61 × 20,577.78
  4. Step 4: Simplify right side
    22,936.50x = 649,735,378.17
  5. Step 5: Solve for x
    x = 649,735,378.17/22,936.50
  6. Step 6: Final answer
    x = 28,327.57

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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.