Home / 31,685.82-43,726.46-19,749.14

Finding the Fourth Proportional to 31,685.82, 43,726.46 and 19,749.14

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Solution

The fourth proportional to 31,685.82, 43,726.46 and 19,749.14 is: 27,253.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,685.82 : 43,726.46 = 19,749.14 : x
  2. Step 2: Convert to fraction form
    31,685.82/43,726.46 = 19,749.14/x
  3. Step 3: Cross multiply
    31,685.82x = 43,726.46 × 19,749.14
  4. Step 4: Simplify right side
    31,685.82x = 863,559,980.24
  5. Step 5: Solve for x
    x = 863,559,980.24/31,685.82
  6. Step 6: Final answer
    x = 27,253.84

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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.