Home / 31,405.05-43,338.65-17,064.59

Finding the Fourth Proportional to 31,405.05, 43,338.65 and 17,064.59

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Solution

The fourth proportional to 31,405.05, 43,338.65 and 17,064.59 is: 23,548.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,405.05 : 43,338.65 = 17,064.59 : x
  2. Step 2: Convert to fraction form
    31,405.05/43,338.65 = 17,064.59/x
  3. Step 3: Cross multiply
    31,405.05x = 43,338.65 × 17,064.59
  4. Step 4: Simplify right side
    31,405.05x = 739,555,991.39
  5. Step 5: Solve for x
    x = 739,555,991.39/31,405.05
  6. Step 6: Final answer
    x = 23,548.95

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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.