Home / 31,836.72-43,950.26-19,903.91

Finding the Fourth Proportional to 31,836.72, 43,950.26 and 19,903.91

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Solution

The fourth proportional to 31,836.72, 43,950.26 and 19,903.91 is: 27,477.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,836.72 : 43,950.26 = 19,903.91 : x
  2. Step 2: Convert to fraction form
    31,836.72/43,950.26 = 19,903.91/x
  3. Step 3: Cross multiply
    31,836.72x = 43,950.26 × 19,903.91
  4. Step 4: Simplify right side
    31,836.72x = 874,781,700.25
  5. Step 5: Solve for x
    x = 874,781,700.25/31,836.72
  6. Step 6: Final answer
    x = 27,477.13

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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.