Home / 31,308.80-43,206.04-16,969.05

Finding the Fourth Proportional to 31,308.80, 43,206.04 and 16,969.05

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Solution

The fourth proportional to 31,308.80, 43,206.04 and 16,969.05 is: 23,417.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,308.80 : 43,206.04 = 16,969.05 : x
  2. Step 2: Convert to fraction form
    31,308.80/43,206.04 = 16,969.05/x
  3. Step 3: Cross multiply
    31,308.80x = 43,206.04 × 16,969.05
  4. Step 4: Simplify right side
    31,308.80x = 733,165,453.06
  5. Step 5: Solve for x
    x = 733,165,453.06/31,308.80
  6. Step 6: Final answer
    x = 23,417.23

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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.