Home / 31,618.22-43,653.48-20,292.59

Finding the Fourth Proportional to 31,618.22, 43,653.48 and 20,292.59

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Solution

The fourth proportional to 31,618.22, 43,653.48 and 20,292.59 is: 28,016.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,618.22 : 43,653.48 = 20,292.59 : x
  2. Step 2: Convert to fraction form
    31,618.22/43,653.48 = 20,292.59/x
  3. Step 3: Cross multiply
    31,618.22x = 43,653.48 × 20,292.59
  4. Step 4: Simplify right side
    31,618.22x = 885,841,953.45
  5. Step 5: Solve for x
    x = 885,841,953.45/31,618.22
  6. Step 6: Final answer
    x = 28,016.82

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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.