Home / 31,588.97-43,574.51-20,410.97

Finding the Fourth Proportional to 31,588.97, 43,574.51 and 20,410.97

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Solution

The fourth proportional to 31,588.97, 43,574.51 and 20,410.97 is: 28,155.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,588.97 : 43,574.51 = 20,410.97 : x
  2. Step 2: Convert to fraction form
    31,588.97/43,574.51 = 20,410.97/x
  3. Step 3: Cross multiply
    31,588.97x = 43,574.51 × 20,410.97
  4. Step 4: Simplify right side
    31,588.97x = 889,397,914.32
  5. Step 5: Solve for x
    x = 889,397,914.32/31,588.97
  6. Step 6: Final answer
    x = 28,155.33

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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.