Home / 31,433.04-43,379.28-17,287.20

Finding the Fourth Proportional to 31,433.04, 43,379.28 and 17,287.20

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Solution

The fourth proportional to 31,433.04, 43,379.28 and 17,287.20 is: 23,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,433.04 : 43,379.28 = 17,287.20 : x
  2. Step 2: Convert to fraction form
    31,433.04/43,379.28 = 17,287.20/x
  3. Step 3: Cross multiply
    31,433.04x = 43,379.28 × 17,287.20
  4. Step 4: Simplify right side
    31,433.04x = 749,906,289.22
  5. Step 5: Solve for x
    x = 749,906,289.22/31,433.04
  6. Step 6: Final answer
    x = 23,857.26

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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.