Home / 31,289.77-43,179.30-17,142.51

Finding the Fourth Proportional to 31,289.77, 43,179.30 and 17,142.51

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Solution

The fourth proportional to 31,289.77, 43,179.30 and 17,142.51 is: 23,656.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,289.77 : 43,179.30 = 17,142.51 : x
  2. Step 2: Convert to fraction form
    31,289.77/43,179.30 = 17,142.51/x
  3. Step 3: Cross multiply
    31,289.77x = 43,179.30 × 17,142.51
  4. Step 4: Simplify right side
    31,289.77x = 740,201,582.04
  5. Step 5: Solve for x
    x = 740,201,582.04/31,289.77
  6. Step 6: Final answer
    x = 23,656.34

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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.