Home / 31,281.69-43,168.74-17,135.04

Finding the Fourth Proportional to 31,281.69, 43,168.74 and 17,135.04

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Solution

The fourth proportional to 31,281.69, 43,168.74 and 17,135.04 is: 23,646.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,281.69 : 43,168.74 = 17,135.04 : x
  2. Step 2: Convert to fraction form
    31,281.69/43,168.74 = 17,135.04/x
  3. Step 3: Cross multiply
    31,281.69x = 43,168.74 × 17,135.04
  4. Step 4: Simplify right side
    31,281.69x = 739,698,086.65
  5. Step 5: Solve for x
    x = 739,698,086.65/31,281.69
  6. Step 6: Final answer
    x = 23,646.36

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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.