Home / 31,576.38-43,575-17,428.92

Finding the Fourth Proportional to 31,576.38, 43,575 and 17,428.92

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Solution

The fourth proportional to 31,576.38, 43,575 and 17,428.92 is: 24,051.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,576.38 : 43,575 = 17,428.92 : x
  2. Step 2: Convert to fraction form
    31,576.38/43,575 = 17,428.92/x
  3. Step 3: Cross multiply
    31,576.38x = 43,575 × 17,428.92
  4. Step 4: Simplify right side
    31,576.38x = 759,465,189.00
  5. Step 5: Solve for x
    x = 759,465,189.00/31,576.38
  6. Step 6: Final answer
    x = 24,051.69

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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.