Home / 31,704.47-43,749.09-18,955.11

Finding the Fourth Proportional to 31,704.47, 43,749.09 and 18,955.11

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Solution

The fourth proportional to 31,704.47, 43,749.09 and 18,955.11 is: 26,156.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,704.47 : 43,749.09 = 18,955.11 : x
  2. Step 2: Convert to fraction form
    31,704.47/43,749.09 = 18,955.11/x
  3. Step 3: Cross multiply
    31,704.47x = 43,749.09 × 18,955.11
  4. Step 4: Simplify right side
    31,704.47x = 829,268,813.35
  5. Step 5: Solve for x
    x = 829,268,813.35/31,704.47
  6. Step 6: Final answer
    x = 26,156.22

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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.