Home / 22,723.38-31,343.49-13,288.50

Finding the Fourth Proportional to 22,723.38, 31,343.49 and 13,288.50

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Solution

The fourth proportional to 22,723.38, 31,343.49 and 13,288.50 is: 18,329.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,723.38 : 31,343.49 = 13,288.50 : x
  2. Step 2: Convert to fraction form
    22,723.38/31,343.49 = 13,288.50/x
  3. Step 3: Cross multiply
    22,723.38x = 31,343.49 × 13,288.50
  4. Step 4: Simplify right side
    22,723.38x = 416,507,966.87
  5. Step 5: Solve for x
    x = 416,507,966.87/22,723.38
  6. Step 6: Final answer
    x = 18,329.49

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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.