Home / 31,319.66-43,218.77-17,172.51

Finding the Fourth Proportional to 31,319.66, 43,218.77 and 17,172.51

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Solution

The fourth proportional to 31,319.66, 43,218.77 and 17,172.51 is: 23,696.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,319.66 : 43,218.77 = 17,172.51 : x
  2. Step 2: Convert to fraction form
    31,319.66/43,218.77 = 17,172.51/x
  3. Step 3: Cross multiply
    31,319.66x = 43,218.77 × 17,172.51
  4. Step 4: Simplify right side
    31,319.66x = 742,174,512.08
  5. Step 5: Solve for x
    x = 742,174,512.08/31,319.66
  6. Step 6: Final answer
    x = 23,696.76

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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.