Home / 31,448.17-43,398.39-18,872.92

Finding the Fourth Proportional to 31,448.17, 43,398.39 and 18,872.92

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Solution

The fourth proportional to 31,448.17, 43,398.39 and 18,872.92 is: 26,044.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,448.17 : 43,398.39 = 18,872.92 : x
  2. Step 2: Convert to fraction form
    31,448.17/43,398.39 = 18,872.92/x
  3. Step 3: Cross multiply
    31,448.17x = 43,398.39 × 18,872.92
  4. Step 4: Simplify right side
    31,448.17x = 819,054,342.60
  5. Step 5: Solve for x
    x = 819,054,342.60/31,448.17
  6. Step 6: Final answer
    x = 26,044.58

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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.