Home / 31,535.04-43,493.74-20,205.59

Finding the Fourth Proportional to 31,535.04, 43,493.74 and 20,205.59

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Solution

The fourth proportional to 31,535.04, 43,493.74 and 20,205.59 is: 27,867.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,535.04 : 43,493.74 = 20,205.59 : x
  2. Step 2: Convert to fraction form
    31,535.04/43,493.74 = 20,205.59/x
  3. Step 3: Cross multiply
    31,535.04x = 43,493.74 × 20,205.59
  4. Step 4: Simplify right side
    31,535.04x = 878,816,678.01
  5. Step 5: Solve for x
    x = 878,816,678.01/31,535.04
  6. Step 6: Final answer
    x = 27,867.94

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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.