Home / 22,756.62-31,395.10-13,800.85

Finding the Fourth Proportional to 22,756.62, 31,395.10 and 13,800.85

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Solution

The fourth proportional to 22,756.62, 31,395.10 and 13,800.85 is: 19,039.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,756.62 : 31,395.10 = 13,800.85 : x
  2. Step 2: Convert to fraction form
    22,756.62/31,395.10 = 13,800.85/x
  3. Step 3: Cross multiply
    22,756.62x = 31,395.10 × 13,800.85
  4. Step 4: Simplify right side
    22,756.62x = 433,279,065.84
  5. Step 5: Solve for x
    x = 433,279,065.84/22,756.62
  6. Step 6: Final answer
    x = 19,039.69

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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.