Home / 31,260.51-43,139.39-17,113.59

Finding the Fourth Proportional to 31,260.51, 43,139.39 and 17,113.59

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Solution

The fourth proportional to 31,260.51, 43,139.39 and 17,113.59 is: 23,616.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,260.51 : 43,139.39 = 17,113.59 : x
  2. Step 2: Convert to fraction form
    31,260.51/43,139.39 = 17,113.59/x
  3. Step 3: Cross multiply
    31,260.51x = 43,139.39 × 17,113.59
  4. Step 4: Simplify right side
    31,260.51x = 738,269,747.74
  5. Step 5: Solve for x
    x = 738,269,747.74/31,260.51
  6. Step 6: Final answer
    x = 23,616.69

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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.