Home / 31,863.07-43,973.18-21,089.38

Finding the Fourth Proportional to 31,863.07, 43,973.18 and 21,089.38

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Solution

The fourth proportional to 31,863.07, 43,973.18 and 21,089.38 is: 29,104.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863.07 : 43,973.18 = 21,089.38 : x
  2. Step 2: Convert to fraction form
    31,863.07/43,973.18 = 21,089.38/x
  3. Step 3: Cross multiply
    31,863.07x = 43,973.18 × 21,089.38
  4. Step 4: Simplify right side
    31,863.07x = 927,367,210.52
  5. Step 5: Solve for x
    x = 927,367,210.52/31,863.07
  6. Step 6: Final answer
    x = 29,104.77

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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.