Home / 31,858.47-43,953.74-19,754.59

Finding the Fourth Proportional to 31,858.47, 43,953.74 and 19,754.59

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Solution

The fourth proportional to 31,858.47, 43,953.74 and 19,754.59 is: 27,254.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,858.47 : 43,953.74 = 19,754.59 : x
  2. Step 2: Convert to fraction form
    31,858.47/43,953.74 = 19,754.59/x
  3. Step 3: Cross multiply
    31,858.47x = 43,953.74 × 19,754.59
  4. Step 4: Simplify right side
    31,858.47x = 868,288,028.90
  5. Step 5: Solve for x
    x = 868,288,028.90/31,858.47
  6. Step 6: Final answer
    x = 27,254.54

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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.