Home / 31,428.35-47,142.51-9,241.91

Finding the Fourth Proportional to 31,428.35, 47,142.51 and 9,241.91

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Solution

The fourth proportional to 31,428.35, 47,142.51 and 9,241.91 is: 13,862.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,428.35 : 47,142.51 = 9,241.91 : x
  2. Step 2: Convert to fraction form
    31,428.35/47,142.51 = 9,241.91/x
  3. Step 3: Cross multiply
    31,428.35x = 47,142.51 × 9,241.91
  4. Step 4: Simplify right side
    31,428.35x = 435,686,834.59
  5. Step 5: Solve for x
    x = 435,686,834.59/31,428.35
  6. Step 6: Final answer
    x = 13,862.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.