Home / 22,740.94-31,384.56-13,790.71

Finding the Fourth Proportional to 22,740.94, 31,384.56 and 13,790.71

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Solution

The fourth proportional to 22,740.94, 31,384.56 and 13,790.71 is: 19,032.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,740.94 : 31,384.56 = 13,790.71 : x
  2. Step 2: Convert to fraction form
    22,740.94/31,384.56 = 13,790.71/x
  3. Step 3: Cross multiply
    22,740.94x = 31,384.56 × 13,790.71
  4. Step 4: Simplify right side
    22,740.94x = 432,815,365.44
  5. Step 5: Solve for x
    x = 432,815,365.44/22,740.94
  6. Step 6: Final answer
    x = 19,032.43

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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.